No clue about your tastes, try the search functions on AW, Vivastreet, Kommons and other listing sites as well as agencies that you can afford. Very few Chinese reviewed here because they're either on constant "tour" (driven by "management" and thus a liability as she's likely trafficked) or they aren't available to us "guizi" or "students" priced at a premium for being young. IF you're a Mandarin speaker then you may have better access than most here through the Chinese forums and classifieds sites.
I have checked the usual sources - asking here in case anyone has some info.
Such girls aren't necessarily "trafficked", most I have spoken to and stayed in touch with did via choice, they are simply here illegally (ie stay beyond their limits).
I'm in touch with some regular Chinese rotation places and the options are poor (worse and worse).
Not sure what has happened - all Asian options in the main dwindling/aging. (I used post new Chinese girls in this thread frequently).