The best streaming app?

HBO MAX
Disney+
Netflix

Actually your question has to be more clear like whether you are looking for free streaming app or region related web series app like Rakuten wiki which provides free asian websites content.

Depends on what you're watching but I love Netflix or HBO max for documentaries.

if you're on mobile like android then cinema hd+ is a good apk that has everything you need but if you're willing to pay then the list below might help

Netflix
Disney+
Crunchyroll
peacock tv

Netflix, or HBO+ MAX

Youtube twitch have bad Policy and rules.
For 18+ stream like chaturbate.

are you talking about gaming or about watching tv/movies?

Pikashow, netflix amazon prime . sony liv

streamlabs for start, but obs better

Streamlab for me easy to stream!