Check out this post; it’s also an editable Wiki table, so anyone can write their own use case.
In this other post we can find some top use cases for using R1:
I think it would be a great idea to identify as many use case categories as possible.
For now, these are the categories:
Search
Learn
Games
Summary
When enough categories have been identified, we could re-organize the wiki by a list of categories and have each one have its own table, so users can continue adding more use cases in an orderly manner.