Here’s another:
Black females and asian males are less likely to be in interracial marriages [1]. Under the heading “For blacks and Asians, big gender gaps in intermarriage”
Of course this only paints part of the picture, since it sliced and diced the data differently. Ideally you’d have much more comprehensive statistics about people in relationships, and the statistics wouldn’t just be % of intermarriage, but all marriages. However you should be able to extrapolate, since all marriages = interracial + interracial marriages. So if asian females have higher rates of intermarriage and males don’t, then there presumably are a surplus of unmarried asian males (and black females for that matter).
I wonder if there is a difference between American born Asians and transplants. In other words, is there a cultural component to the preferences (i.e. foreign cultural component, rather than just local cultural components). For black women obviously, this applies much less and other things might be going on.