Bright, sensitive Hispanic geek in the middle of what, Afro territory? (At least that’s what Harlem used to mean.)
Socialist hells.
Although there are blacks there, East Harlem is also known as Spanish Harlem or el Barrio
West Harlem, almost totally black is what you are thinking of. (Sugar Hill) I was last there in 99 and at that time some gentrification had already started.