You can find Korean girls at some of the storefront AMPs in the city, though not nearly as many as you could have a few years ago. Empire Spa on O'Farrell (Tenderloin/Union Square area) has some for sure. Susu Spa on Geary is adjacent to a Korean bar, so maybe? Other storefronts in the area, I'm not sure. It seems like it's easier to find Thai/Viet girls at the Tenderloin AMPs, from what I've read, and of course Chinese women at the CAMPs.
Probably none of these places will have the type of facilities or service you get from the Korean AMPs in Manhattan, and almost certainly not like the GFE places in NY. For the best Korean service, like others have said, you need to get down to the AAMPs in San Mateo. If you look at the San Francisco review section of this site, many of the reviews are for these places.