I like to use rutracker.org. The tracker is public but the search is behind a registration form. Based on my experience it has some content I was unable to find on English trackers. Additionally, InsaneZemRes (a no compression repacker, good if internet speed/bandwidth aren’t of a concern) uploads new releases to there instantly, so very comfortable if I’m looking for a game that came out recently.
In case I can’t find what I’m looking for on rutracker, torrentgalaxy.to is a good alternative. They have a lot of the RARBG torrents and I think that’s where most ex-RARBG users migrated.