That is great. It depends on your kind of taste. Are you a crypto fanatic? If yes, then I think you gotta have to look and study some top popular casinos investment returns like Crypto-Games, Safedice, Kingdice, Bitvest and some others. There are also casinos that offer tokens from their ICOs like Edgeless, VDice, Wagerr, Betking and some few others which are worth studying on their charts and news. If I were you I won't be only investing in just 2 casinos. I'll probably make it at least 4 depending on the amount you want to invest though. Good luck.