I think I get what you are asking. I can only go on my limited experience in the DMV (mainly DC) I see a lot of black men with classy and beautiful white women all the time. Same with Latinas. And even Asian women occasionally. DC is such a metropolitan city just a lot of mixing and forward thinking. Definitely see less mixing in Virginia. Which I find ironic since Loving v Virginia case lol.
Maryland I have less experience with, but seems about same more or less. In California it's HUGE for black men with white women, I think it's actually less common to see a black man with a black woman out here than any other pairing lol. But in DC a lot of high quality women and men getting together. And a little something for everyone. In terms of Asian women I more mean the general worldview of Asian women tbh. DC just happens to be no different than that. The only state where I really noticed a lot of black men with Asian women, or at least seemingly more than usual with Dallas in the Dallas and Austin areas. But I have no raw data on this, just personal experience and through my friends. I stay in regular contact with 4 black men who live in DC (I went there for higher education) out of the 4, three of them are with non-black women. The other is with a black woman that he's married to.