I hate to tell you but the white top black bottom not only exists, it has a lucrative crowd, but its not in the appreciation of black men and plenty of white men like it, they just don't wouldn't admit to it because its "taboo" aka just entirely hopelessly racist.
Just like click amadeaus' or Max K*nners (god i cannot stand him) twitters and you are like no less than 3 strategic clicks away from some sort of weird raceplay account all about black bottoms, but its not in the light you are looking for. If anything the fetishism displayed there is worse than BBC and you'll find plenty of racoons jumping to the defense of it being fantasy. You can just go directly in the nest with accounts like Harlem Hookups.
Black sw's actively play into it sadly too. Big C Men has been like exposed what, several times since 2020 alone and the same black sex workers work with him.
It's just a mess out here.