What are some projects using ENS for identity

First I have a question, Is there a list somewhere of projects using ENS on chain or for identity login?

Now my proposal, ENS can be used by other smart contracts. I am thinking it would be really cool if an institution or individual in control of a ENS name can sign ERC721 and ERC1155 tokens. Are there any projects or standards working stuff like this?

At what point are Sports stars, celebrities’, and Elon Musk going to get themselves a DiD and start signing NFT’s with it.