PeerTube seems to be the federated (decentralized) option (similar to this). Content obv is entirely different, but maybe that's actually a good thing. Think of it as a clean slate - a fresh canvas. tbh YouTube's content has really sucked the past few years, and mother of bog do you see the stuff that trends nowadays when you're signed out? It's basically become cable tv. I started using youtube bc I hated cable tv.