A dockable build switcher and defines manager. Edit `Defines` and `AllBuilds` in the code to fit your project.

OdinBuildSwitcher.cs

/// OdinBuildSwitcher
/// 5argon - Exceed7 Experiments
/// http://exceed7.com , [email protected]

using UnityEditor;
using UnityEngine;
using UnityEngine.SceneManagement;

using System.Collections.Generic;
using System.Linq;

using Sirenix.OdinInspector;
using Sirenix.Utilities;
using Sirenix.OdinInspector.Editor;
using Sirenix.Utilities.Editor;

public class OdinBuildSwitcher : PreSetupOdinEditorWindow<OdinBuildSwitcher>
{
    #region Your configurations
    /// <summary>
    /// All of your game's custom defines here. Please type the enum as if they are preprocessor strings.
    /// </summary>
    [System.Flags]
    public enum Defines
    {
        LOG_NETWORK = 1 << 1,
        CHEAT_BUILD = 1 << 2,
        STRIP_CODE = 1 << 3,
        TESTING = 1 << 4
    };

    /// <summary>
    /// Your desired platform presets here. They must be in pairs of BuildTargetGroup and BuildTarget used for Apply buttons, and optinally build path for that preset + any numbers of BuildOptions used for Build buttons.
    /// </summary>
    private static Dictionary<string, BuildConfiguration> AllBuilds = new Dictionary<string, BuildConfiguration>
    {
        ["Android"] = new BuildConfiguration(BuildTargetGroup.Android, BuildTarget.Android, "./AndroidBuild/AndroidBuild.apk", BuildOptions.AutoRunPlayer, BuildOptions.StrictMode, BuildOptions.Development),
        ["iOS"] = new BuildConfiguration(BuildTargetGroup.iOS, BuildTarget.iOS),
        ["Standalone"] = new BuildConfiguration(BuildTargetGroup.Standalone, BuildTarget.StandaloneWindows)
    };
    #endregion

    #region Odin
    [EnumToggleButtons, LabelText("Select Defines")]
    public Defines selectedDefines;

    [ValueDropdown("AllBuildKeys"), LabelText("Select Build")]
    public string selectedBuildKey;

    [Button(ButtonSizes.Medium), GUIColor(1.0f, 0.4f, 0.4f)]
    public void Apply() => Apply(selectedBuildKey, selectedDefines);

    [Button(ButtonSizes.Medium), GUIColor(1.0f, 0.9f, 0.5f), PropertyTooltip("Will switch to selected preset and defines, build, and switch everything back. You still have to wait for a project recompilation afterwards but at least you don't have to babysit the build just to change everything back when it finishes.")]
    public void BuildWithSelectedSettings() => ApplyBuildRevert(selectedBuildKey, selectedDefines);

    [Title("")]
    [ShowInInspector, ListDrawerSettings(Expanded = true), PropertyOrder(10)]
    public static string[] CurrentDefines => PlayerSettings.GetScriptingDefineSymbolsForGroup(EditorUserBuildSettings.selectedBuildTargetGroup).Trim().Split(';');

    [ShowInInspector, HorizontalGroup("BuildTarget", Width = 0.66f), LabelText("Current Build Target"), PropertyOrder(11)]
    public static BuildTargetGroup CurrentBuildTargetGroup => EditorUserBuildSettings.selectedBuildTargetGroup;
    [ShowInInspector, HorizontalGroup("BuildTarget", Width = 0.33f), HideLabel, PropertyOrder(12)]
    public static BuildTarget CurrentBuildTarget => EditorUserBuildSettings.activeBuildTarget;
    #endregion

    protected override string Title => "Builds";
    protected override EditorIcon Icon => EditorIcons.GridBlocks;

    [MenuItem("Window/Your Game/Build Switcher")]
    private static void Open() => OpenWindow();

    private struct BuildConfiguration
    {
        public BuildTargetGroup buildTargetGroup { get; }
        public BuildTarget buildTarget { get; }
        public string buildPath { get; }
        public BuildOptions[] buildOptions { get; }

        /// <param name="buildPath">Default is your previous build location you manually build before.</param>
        public BuildConfiguration(BuildTargetGroup buildTargetGroup, BuildTarget buildTarget, string buildPath = default(string), params BuildOptions[] buildOptions)
        {
            this.buildTargetGroup = buildTargetGroup;
            this.buildTarget = buildTarget;
            this.buildPath = buildPath;
            this.buildOptions = buildOptions;
        }
    }

    private static IEnumerable<string> AllPossibleDefines => System.Enum.GetNames(typeof(Defines));
    private static IEnumerable<string> AllBuildKeys => AllBuilds.Keys;

    private static BuildTargetGroup TargetGroup(string buildKey) => AllBuilds[buildKey].buildTargetGroup;
    private static BuildTarget Target(string buildKey) => AllBuilds[buildKey].buildTarget;
    private static string BuildPath(string buildKey) => AllBuilds[buildKey].buildPath;
    private static IEnumerable<BuildOptions> GetBuildOptions(string buildKey) => AllBuilds[buildKey].buildOptions;

    /// <param name="withDefines">Use bitwise OR to merge multiple defines</param>
    public static void Apply(string buildKey, Defines withDefines)
    {
        Debug.Log("Changing defines...");
        List<string> currentDefines = CurrentDefines.ToList();
        List<string> newDefines = new List<string>();
        foreach (string oneOfCurrentDefines in currentDefines)
        {
            if (!AllPossibleDefines.Contains(oneOfCurrentDefines))
            {
                //Don't touch other defines we don't know about
                newDefines.Add(oneOfCurrentDefines);
            }
        }
        //Add new defines
        foreach (Defines d in System.Enum.GetValues(typeof(Defines)))
        {
            if ((d & withDefines) != 0)
            {
                newDefines.Add(d.ToString());
            }
        }
        PlayerSettings.SetScriptingDefineSymbolsForGroup(TargetGroup(buildKey), string.Join(";", newDefines));

        Debug.Log("Switching build target...");
        bool switchingResult = EditorUserBuildSettings.SwitchActiveBuildTargetAsync(TargetGroup(buildKey), Target(buildKey));
        Debug.Log(switchingResult ? $"Switched to {Target(buildKey)}." : $"Switching to {Target(buildKey)} failed!");
    }

    /// <param name="withDefines">Use bitwise OR to merge multiple defines</param>
    public static void ApplyBuildRevert(string buildKey, Defines buildWithDefines)
    {
        string[] rememberDefines = CurrentDefines;
        BuildTarget rememberBuildTarget = CurrentBuildTarget;
        BuildTargetGroup rememberBuildTargetGroup = CurrentBuildTargetGroup;

        Apply(buildKey, buildWithDefines);
        BuildWithCurrentDefines(buildKey);

        EditorUserBuildSettings.SwitchActiveBuildTargetAsync(rememberBuildTargetGroup, rememberBuildTarget);
        PlayerSettings.SetScriptingDefineSymbolsForGroup(rememberBuildTargetGroup, string.Join(";", rememberDefines));
    }

    /// <summary>
    /// You can call this from somewhere else as you like.
    /// </summary>
    public static void BuildWithCurrentDefines(string buildKey)
    {
        Debug.Log("Building...");
        BuildPlayerOptions bpo = new BuildPlayerOptions();
        bpo.scenes = EditorBuildSettings.scenes.Select(scene => scene.path).ToArray();
        bpo.targetGroup = TargetGroup(buildKey);
        bpo.target = Target(buildKey);

        if(BuildPath(buildKey) == default(string))
        {
            bpo.locationPathName = EditorUserBuildSettings.GetBuildLocation(Target(buildKey));
        }
        else
        {
            bpo.locationPathName = BuildPath(buildKey);
        }
        bpo.options = BuildOptions.None;
        foreach (BuildOptions bo in GetBuildOptions(buildKey))
        {
            bpo.options |= bo;
        }
        var report = BuildPipeline.BuildPlayer(bpo);
        Debug.Log($"[{report.summary.buildStartedAt}~{report.summary.buildEndedAt}] Build result : {report.summary.result}, Output : {report.summary.outputPath}");
    }

}

/// <summary>
/// Gives a good template for adding title and icon that persists.
/// After subclassing, your class can just call base.OpenWindow() on the code with [MenuItem]
/// </summary>
public abstract class PreSetupOdinEditorWindow<T> : OdinEditorWindow where T : PreSetupOdinEditorWindow<T>
{
    protected abstract EditorIcon Icon { get; }
    protected abstract string Title { get; }
    private static T window;

    protected static void OpenWindow()
    {
        window = GetWindow<T>();
        window.position = GUIHelper.GetEditorWindowRect().AlignCenter(700, 700);
    }

    protected override void OnEnable()
    {
        window = GetWindow<T>("", false);
        RegisterRefreshTitle();
        base.OnEnable();
    }

    private static void RefreshTitle()
    {
        window.titleContent = new GUIContent(window.Title, window.Icon?.Active);
    }

    private static void RegisterRefreshTitle()
    {
        RefreshTitle();
        UnityEditor.SceneManagement.EditorSceneManager.activeSceneChangedInEditMode -= RefreshTitle;
        UnityEditor.SceneManagement.EditorSceneManager.activeSceneChangedInEditMode += RefreshTitle;
    }

    private static void RefreshTitle(Scene from, Scene to) => RefreshTitle();
}