>>1504872931yo, though had older friends which explain some picks
But honestly don't feel bad for having a 'short list', time is precious. Even among vtubers many aren't that deep in "otaku" culture, if you have other stuff to talk about it's not mandatory.
I spent most of my youth on anime forums or boards, got into an association related to that, staffed at conventions, met Ryukishi and Noizi Itou thanks to that, which is nice but not too useful in the daily life I guess.