You can try this
https://betnomi.com/poker#/ and they are also doing promotions in here
https://bitcointalk.org/index.php?topic=5288276.0~ snip ~
I do not quite understand why you are looking for a gambling area where rich people play, because if a player runs out of money, he flies out of the table and in his place comes another player. In addition, a player can leave the game at any time, regardless of the amount of money in his pockets.
I also really don't understand why he is looking for rich people, even though if think about rich people at the table including experts in the game of poker. can even control emotions of their opponents by playing them.
Of course, in my opinion, professional poker players are either supported by their wealth or have a lot of money for sufficient capital to play because playing poker takes a long time and must have sufficient capital.
and besides that they also master the game and they play for fun and rely only on luck and if they lose they will not regret it.
It looks like the OP has a lot of capital or is rich and wants to play with equals.