I like nebula but it is pretty limited. Its mostly educational and essay type stuff. For the price it is amazing and the only streaming platform i have anymore. But i dont know if id call it a youtube alt unless you only watch that type of video. They have a handful of other things too but the variety just isnt there yet. The other thing i both like and dislike is the lack of comments.

I do recommend it though. Crazy affordable, owned by the creators, ad free. Just kind of niche still