Bob and Brad on YT are great. I've followed them for years and they've always seemed evidence based and knowledgeable. They helped with some of my own chronic joint pains.

https://m.youtube.com/results?sp=mAEA&search_query=Bob+and+brad+tmj

Nostr right now will probably yield more useless bullshit than anything, unfortunately. There's a lot of quackery on here.