Lilly Singh, Superfruit, Qaadir, FineBros (only the Reacts), Kyle Krieger, David Dobrik. BuzzFeed, occasionally Joey Graceffa (I always found him shallow, but it's nice to see that fame hasn't really changed him too much - he's actually weirder now that he came out).
I can't do the Tyler-Connor-Grace subset. They've all gotten highly overbearing and self-obsessed since things started happening for them.