All the other AVS that might allow you to have more sponsor ads are great, but the bottom line is that One Verify drives a shit load of traffic to their link list. You would probably better off to redo your gallery pages and make your members area a multi-page members area.
For example, if you have 70 pages of pictures, put 4-8 gallery links on a page with a thumb preview of that gallery. Then on each of the main 10 pages, put a link to a sponsor. Then they see your sponsor links all over and the galleries stay clean!
Flow
