There's a few things to try....
I collect TGP's from the UCJ site list...
http://adultwebmasterinfo.com/ucj/sites.html
There's at least 100+ sites in there around 50k. Grnated, it's UCJ traffic so a gallery listing will only see 500 to 1,000 hits but it's decent traffic. Don't let anyone tell ya different. I run several UCJ sites and we bounce the surfers around pretty good so all ya gotta do is get them to fall in love with a girl. Most UCJ sites are categorized for trade purposes but it gets you targeted traffic too.
Another option would be things like zulu database and tgp software. Both are submission services that a lot of sites use as a database to pull galleries from.
Also, I'm always on the look out for sites running Auto Gallery !! These sites are obviously updated regularly so they're hungry for new galleries. Just do some leg work !
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Make $$$ the All New Diabolical Way