I have read the sword of truth, an that series is heavy into femdom, the mord sith are literal dominatrixes, and the main character gets collared. I was wondering if anyone has any recommendations for similar style of books.
Keep an eye out for "dark fantasy" titles. Those are novels written where the "monster" is actually the hero, or where "normal" fantasy societies have gone to some pretty dark places. Obviously, not all titles will have it, but for some reason, femdom dynamics turn up more there. As for specific titles, Anne Bishop's Black Jewels trilogy is worth a look. Starting with Daughter of the Blood, she really got into the femdom angle. The series is set in a very abusive gynarchy, where the women use magic chastity belts and supernatural aphrodisiacs to keep the men under control. The main character is an assassin and elite sex slave, desperately hoping for the day when the prophesized female messiah will come to issue in a new era of peace and loving femdom Its not for everyone, though. I think this was her first novel, and she was trying to get noticed . . . so she took it to some pretty dark places.
Melanie Rawn's Exiles "trilogy" is supposed to revolve around a revolution in a female-dominated society. Starting with Ruins of Ambrai, three mage sisters get swept up in the revolutionary fervor: I keep meaning to read it, but I wanted to wait for the third book in the trilogy to come out. However, as its been twenty years . . . I may have to give up, and just read the first two books.
Maybe not Femdom per se, but Female Led. I am reading a book called "A Brother's Price" by Wen Spencer. In this book males are rare in society and are considered property of females. They can be bought, sold, and are often stolen/kidnapped in order to father more children in the hope of getting more male babies. I won't review this book because I honestly I think reviews are pointless. My opinion of a book may not reflect any else's. With that said, I was hoping for more femdom and maybe more sexual content, but it's been pretty PG so far in my opinion.
Fighting Slave of Gor - is all about a Urth guy taken to Gor and enslaved, so 2/3rds of the book is Gorean femdom until he escapes, and I'd say it is done pretty well.
Well not quite a wild fantasy style, but the classical "Regiment of Women", by Thomas Berger is a good femdom novel. I loved it when i read it in the 70s.