May I ask mate if you have played on those site ? I am a player of Bistler.com and Bitcasino.io
and yes they are legit but have not played Keno because I am not familiar about that game.
but I am wondering if OP is still looking for alternative , because he is not active here and also to the case he filled
against stake .
Check out this
list of crypto casinos - there are almost 60 sites listed and most of them have keno games. You should be able to find a good alternative.
Betfury could be an option.
Betfury? seems to be there are many on the list but mentioned Betfury
Will try this list to check if there are valid and good site to gamble as I am now interested in this Keno Game.