there was another topic here asking the similar question to you and from there i found some of the casinos that you can invest in but from those i have chosen two to watch for myself before investing
crypto-games: because they have been around for a while
moneypot: because i like the way it works.
And I'm also invested in moneypot:

Thus is good and all but what sort of return are you getting ? My expierence is 2-3% in just over a month what about you ?
It honestly depends how much you invest, some sites have bigger bankrolls making a return on profit harder if you don't invest a lot.
If you don't have much money to invest, invest in a site with a small bankroll. OP, how much do you have to invest? That might help you make your decision.