Are you kidding me?? They're everywhere! Most Asian parlors I know of cater to that market, or check out massage, therapeutic, escorts on craigslist or backpage, and look for the parlors there.
Are you looking for a guy or girl? In Denver, women are easier to find at the parlors, though some have a guy or two. guys often work out of a studio, or house with a couple other guys.
Let me know if you need anything specific, I can't BELIEVE you're having problems!
--Oh, I thought you were in Denver. You didn't say where you live!