are you looking for a cryptocasino or a fiat casino?
there are hundreds of fiat casinos that offer slots, the only thing that they are not provably fair
and you have to rely on the operators of the casino and the licensing bodies not to cheat you out of your money
if you want to try some exclusive cryptocasino slots , try crypto-games.net  or bitvest.io
they both offer unique and very addictive slot games that are provably fair and you can verify the results of every roll