So I just returned from Korea.
I first reached out to this place because they offer anal: http://exhibitions.thepark-oriental.com/
I asked for a guy and when he showed up, he didn't look like his photo, so I canceled the appointment.
I then tried this place: http://olympiakorea.shop/
They do massage. I got these two guys, Balmain and Chacha. Balmain didn't live up to his photo, but Chacha EXCEEDED his. He left me speechless when he came in the room and thereafter.