Vtuber useful links

>Hololive

Official site+schedules
https://schedule.hololive.tv/#hololive

Shows all live Holos, allows multi-streaming which is very useful for collabs
https://hololive.jetri.co/#/

>Nijisanji

Official site+schedules
https://www.itsukaralink.jp/

Same as Holo link but for nijisanji
https://nijisanji.vtubervideo.net/

>???
https://vtuber.jp/channels


>Large aggregate sites

https://virtual-youtuber.userlocal.jp

Probably the most useful link here, shows the most popular streams of the last 24 hours, current lives and has schedules across a variety of platforms.
https://hiyoko.sonoj.net/live/

If for whatever reason you want knowledge on a vtuber's 中の人, it's gossip -much like any dox involving vtubers- so take it with a grain of salt anyway.
https://lagcapa.org/category/youtuber-vtuber/