UI inspiration for many to many relationship

Looking for a little inspiration for ways to visualize a many to many relationship between objects in the editor. In this case, it's draggable objects and goal objects, some could be linked to all, all could be linked to all, some can be linked to some, along with a way to manage the settings for each.

Is there anything you've seen built with Unity's standard UI that handles this well? A node based solution seems obvious, but if there's anything else that you have used that handles something like this fairly well?