Massage
Every kind of site with massage content, best first.
Premium studios
About massage porn sites
Massage porn starts with a massage and goes from there: oil, sensual build-up and slow scenes. It ranges from professional studios with spa sets to amateur "real massage" setups, which are almost always staged.
The best massage studios take the build-up seriously, which is the whole point of the niche. Nuru and tantric styles have their own series. Lesbian massage is a popular sub-genre with its own sites.