Thomas Shey
Legend
Roll20 has a "Join a Game" page which features all groups currently looking for players. You can filter it by various factors including game system, which day(s) you can play and rough starting time.
This is my first time using it - I've played several games on Roll20 in the past couple of years, but they were all with people I already knew. This is my first time looking to join a new group since I first joined a local face-to-face RPG club over 20 years ago.
That's the problem, of course; you're doing the equivalent of joining a very large club game, with all the hazards intrinsic to that.