There are quite a few that are honest and trustworthy. Here are a few that I trust:
http://www.affiliateguarddog.com/casino-affiliate-program/reviews/
If you look there, AGD (AffiliateGuardDog.com) has reviewed all their terms and conditions to ensure that they are 100% affiliate-friendly (check the affiliate-friendly side, not the Predatory side).
That is a good start for programs and a good variety of casino softwares to work with.
You will certainly get a lot of opinions about this 