It isn’t fair to imply that all RTG casinos / affiliate programs are bad.
CWC Affiliates is an outstanding RTG group. They always pay affiliates on the first day of the month. Players are treated well.
Mainstreet Affiliates has been nothing but a pleasure to work with, and they convert quite well for me. Retention seems decent too.
Bodog is another reputable RTG casino. My affiliate managers have been friendly, helpful, and available whenever I needed them. You do need to be reviewed and approved before you can promote them (they don’t just accept anyone who applies), so this could be a problem if you have a junky looking site.
casinotime, I would suggest switching over to some RTGs that accept U.S. players. Earn United tanked for me too, after the U.S. ban went into effect. But there are still a lot of good RTG options to choose from. I do well with the three programs I listed above. I haven’t worked with iNetBet, so I can’t comment on that program.