This is how you can make custom alignments and how to use it. In this case we do a custom alignment for two separate VStacks

CustomAlignmentGuideExample.swift

import SwiftUI

extension VerticalAlignment {
    enum MidAccountAndName: AlignmentID {
        static func defaultValue(in context: ViewDimensions) -> CGFloat {
            context[.top]
        }
    }
    
    static let midAccountAndName = VerticalAlignment(MidAccountAndName.self)
}

//MARK: HOW TO USE IT
struct CustomAlignmentGuide: View {
    var body: some View {
        HStack(alignment: .midAccountAndName) {
            VStack {
                Text("@andresr_develop")
                    .alignmentGuide(.midAccountAndName) { d in
                        d[VerticalAlignment.center]
                    }
                
                Image(systemName: "person.circle.fill")
                    .resizable()
                    .frame(width: 64, height: 64)
                
            }
            .background(.green)
            
            VStack {
                Text("Full name:")
                Text("Andrés Raigoza".uppercased())
                    .alignmentGuide(.midAccountAndName) { d in
                        d[VerticalAlignment.center]
                    }
                    .font(.title)
            }
            .background(.blue)
        }
    }
}