AOC used to be here (not sure why she isn't anymore). And Wyden (and some state legislators) still is but yeah...fairly limited number.

AOC’s kind of a polarizing figure for the online left depending on who you ask, those who dislike her either do so for understandable reasons or for petty ones she joined early on, so she might’ve jumped ship because there were very few safeguards against harassment and pile-ons at that time