ARS is always good, because of all the BYOT's they have to promote in each niche.
Also try:
CJ Bucks - I just started using them & they look to be very good
Extreme Paychecks - kinkier/fetish teen stuff
Flynt Digital - Barley Legal always sells
Orgasm Cash - pay & free trials - always releasing new sites
Sex Money - it's not a dialer
Sunny Dollars - converting very well for me