I’ve been hearing good things about peertube and pixelfed, but have yet to really dive into either. Both are free and decentralized like lemmy though :)

https://joinpeertube.org (positioned to replace youtube)

https://pixelfed.org (more like instagram?)

I can’t believe I’m only now looking into the decentralized side of the social internet - I’m usually an early adopter lol. Been a boiling frog in corporate for too long.