This brings to my mind the following, there are some casinos that have investment options, you should know the Betfury casino well that a few years ago gave the option to buy the BFG, but at the same time caused quite a lot of returns in other crypto, including Bitcoin, what do you think about it? ...
I haven't heard about them, to be honest, but I was away from the crypto space for a few years until recently, so still am a bit out of the loop. I'll try to take a look at them in more detail when I have time.
I do like the concept of investing in the bankroll though. But despite having a mathematical advantage, there's always some trust involved, which usually puts people off.
Apart from Betfury, you have another casino option, namely Owl.games, where you also invest in Owl tokens which can give you additional Owl or BUSD tokens. This is interesting because you can try both casinos and see which is more profitable for you.
Betfury and Owl have their advantages and disadvantages, so you should choose one based on your research. But you can also choose both to find out. And only use the money you can afford if you want to invest in the two casino tokens.