What does God look like for the Black Hebrew Israelites? Like is he human? And where is he?

Judaism is religion which anyone can convert to. If you have actually ever read anything about Judaism you would know the very first Jew was a convert.

Any race can be Jewish. There are white, black, native american, Chinese, Japanese, Korean, Hispanic/Latino etc Jews. They are all equally Jewish.

There is a legend that the Queen of Sheba went back to Africa carrying Solomon's baby.

But for some strange reason, people tend to portray Jesus as their race, but the fact is nobody knows what he looks like, and he very definitely looked Middle Eastern / Jewish

Being a true Jew has nothing to do with black or white unless they are trying to be separate from the rest of the Jews. Being a true Jew is genetic and DNA of the Lemba people prove they are Jewish. Not black jews just Jews.