The Fate series is where most of my kink thoughts have been for a long while now. Xenoblade gets some thoughts too, but that's a bit more rare, since it's a bit more difficult to justify some of the more "fantastical" fetishes in my mind than a setting like Fate. A lot of the other things I'm into aren't really fetishable for various reasons - mostly having casts of minors, or having character designs that aren't really sexy.