I can't say that there is a "best" in this category... sometimes this forum helps, and sometimes one of the review sites helps. The good thing about this forum is that some crypto casinos have active representatives here. Then it's easier to get in touch with them, but that's only true for some crypto casinos. The vast majority of crypto casinos have never come to the forum.

The best thing we can do is to write a complaint wherever we can, and after that, we can only hope for the best.