I just posted a blog post I was working on where I touch on web3 identity. I looked into a few of the options out there including ENS, Unstoppable Domains, HMN.Domains and Nametag.org. If you have any questions/feedback, feel free to share.
https://bigboystoys13.blogspot.com/2022/03/web3-identity.html
https://bigboystoys13.blogspot.com/2022/03/web3-identity.html