I recommend looking at this website. This product has the capability to deposit and withdraw using cryptocurrencies like Bitcoin, Ethereum, and USDT.

https://www.pokerscript.net/

These are some features they have highlighted.
-Texas Poker
-Omaha Poker
-Cash Games
-Ring Games
-Tournaments
-Club

If you have a ready design and just want to use their core engine they also provide API for that. The price is also reasonable for Whitelabel.