You want other sites?
Then test out https://bitvest.io
They've recently become active specially into their ANN thread.

Here's other one;
https://crypto.games/keno/bitcoin
https://www.bitsler.com/en/keno
https://bitcasino.io/play/crash-games/spribe-keno

These sites are known and this is why i could say that it is safe to play into these platforms.
As for Stake then its legit and popular too. I dont know on what you do mean about rigged. lol

Well, we do have our own preference and choices which you could be able to choose
above on where you would really be starting on hanging out.