>>106576991I'd say start checking any Vtuber who plays a game or content that interests you, and also check on other Vtubers you come across, you will find one you vibe with eventually.
I'd say the best communities to make friends are very small Vtubers with dedicated members. Even if I like watching Mei Miyuri, no one knows her, so maybe start watching some popular Vtubers to have topics to talk about with other fans.