Stake is only good for high rollers and rich people, they never have any offers or anything for normal people, you need to wagger like 1000 usd, 5000 usd atleast in ONE weak to get some offers...
Stake is taking from normal people and brag that people like drake plays there.
Most of the casino has same feature that rewards more high rollers since casino is just returning part of the profit that they can get from the user itself. Only few casino offers a too good to be true promotion even for newbie and most of them incorporates it with a hard requirements.
In terms of Poker game. Betnomi is the most active crypto casino here that has a strong poker community. You can try it for yourself.