Not sure if you're referring to live poker or online.
For live poker, I enjoy the Monte Carlo poker room in Vegas. It's small, cozy, and very friendly. There's a good mix of tourists in there; occasionally a pro grinder, but not the real sharp ones. lol
I've enjoyed playing at MGM, too, but it's been quite a while since I've been so that's a luke-warm, stale recommendation.
Online, I have just a few options being in the USA. I play mainly on BetOnline, but have played at Black Chip and on the Sportsbook branded room, as well. BCP was good; much better software than BOL, but the games are softer on BOL.
That's my thoughts. Hope you hear from others!