fantasy slave trade (looking for doms)

There is this one comic I saw awhile ago. Basically this black market slave trade. But it has levels. The normal levels where orcs, elves, and fairies reside. Humans too. Then they get more intense with the more rare the creature. Harpies, werewolves, vampires, kobolds, furries, sirens, etc. The higher the levels, the more expensive they are. Overall, this plot would be about a dominant male or female stepping into the black market to buy a pleasure toy for themselves. 
Encouraged Kinks (for this roleplay idea): hypnosis, breeding, body manipulation, cum overload, overstimulation, edging. any others, you can ask me about!