Ah, but you don't want one IRL. Fictional succubi look like hot women, but if you actually go about getting the materials together for a proper summon and do the planar bridging nonsense it always takes to cross the Void Boundary, what you wind up with is this goat bitch with a hairy-ass snatch and a beard who'll try to rape you and eat coke cans. Really not worth the effort.
If you want to just summon a baddie for sex purposes, opening a portal to Japan and kidnapping a kitsune is honestly way easier and safer. Most of 'em got little bells on and if you snatch it with like a telekenisis cast or something they'll do whatever you want. Plus Kitsune are always looking for fucc, so they're usually not too pissed to get nabbed as long as you don't expect 'em to do anything more strenuous than cook cookies for you two to share.
Now, if you're willing to put in effort, try Iran. They got this invasive species of Harpy from Greece that got imported in the 60's, the local monsters hate them, you can usually just ask one of the local pheonixes to hand over any harpies they catch instead of putting 'em in the woodchipper and they'll do it. The hard part is finding any of their monsters before running into the human authorities, Pheonixes are rare and so are Naznaz these days. Spazg are everywhere since they got ties with the government but I wouldn't trust those fuckers as far as I could throw 'em.