.cs

public interface IManager {}
public interface IManager<T> : IManager { public void AddComponent(T comp); }

public GraphicsManager : IManager<Sprite>, IManager<Camera>
{
...
}

public void World
{
   IDictionary<Type, ManagerAdder> _adders;
   
   public void AddManager<T>(IManager<T> mgr)
   {
      _adders[typeof(T)]._managers.Add(mgr);
   }
   
   public void AddEntity(Entity e)
   {
      foreach(var comp in e.Components)
         _adders[comp.GetType()].AddComponent(comp);
   }
}

public class BaseComponent {}
public class Entity { public List<BaseComponent> Components; }

interface ManagerAdder
{
   void AddComponent(BaseComponent c);
}
   
class ManagerAdder<T> : ManagerAdder
{
    pubic List<IManager<T>> _managers;
    public ManagerAdder(IManager<T> manager)
    {
       _manager = manager;
    }
    
    void AddComponent(BaseComponent c)
    {
      _managers.ForEach(x => x.AddComponent((T)c));
    }
}