So I know of SWC Poker and Sportsbet.io both of which offer very good poker tournaments where there is enough action and players.
Any other good sites out there?
Yes, SWC Poker has done tournaments for years in BTC, and even then if you are a streamer you can see it Twitch, maybe, this has a chance for you to judge your winnings via streaming.
If you are a gambler in SWC Poker.
OP, if you are looking for other than SWC Poker who bet with poker in Bitcoin you can get it here and outside the forum, maybe more available on this forum and outside, but I can encourage you to stay on the Poker gambling sitewhich has a good reputation and has been running for at least 3-5 years.