But if you want a more spontaneous learning process aka "immersion", I know exactly two JP-native vtubers learning English through immersion, and you can definitely learn from them too.
https://www.youtube.com/watch?v=SJEAPEBozqsBeatani is playing the haha menhera FOTW game, she's almost done but you can definitely still watch her. I have not watched her lately, but I think she still utilizes Japanese to fill up the gaps in her vocabulary.
https://www.twitch.tv/ifeltieyeldFelti is an overworked mangaka who streams her projects. Her chat is much more on the slower side, so you can definitely chat her up to practice your japanese. Do note, unlike Beatani her EN learning, while impressive to a former JOP, is a bit more limited.
>>17376711/vt/ needs their spinoff of /djt/, honestly. Vtubers are great resources for learning because unlike anime, you can actually interact with them.