Aside from Peertube one I could think of is vimeo, dailymotion, dtube and twitch, then again in terms of content and servers available around the world nothing matching youtube, except maybe tiktok and twitch. There is pornhub which I think could be the best competitor for youtube barely any restrictions you can talk shit in fact some actually upload gaming videos and some random stuff aside from porn ofcourse they have a lot of servers around the world. The videos dont buffer that much. Who ever owns pornhub if they decide to have sfw alternative to it they could be best alternative to youtube.

Edit: I think they dont have sfw because its hard to make money out of it similar to youtube which is operating at a loss. The only reason google still keeps youtube running is because its a white elephant.