The Problem with Black-Themed Children's Books

I've discovered a serious problem as I'm searching to buy more. For the stage Sunny's at right now, they're either too negative or not exciting enough.

The ones about African-American history look exciting, but they bring up subjects I don't want to start discussing at this age. I'd rather wait at least a year or two.

The themes of the positive ones are... well... kind of crunchy, for lack of a better word. They would be great if he was already raised on that type of book and used to it. But he's not. He likes Dr. Seuss books, and then he likes things with trucks and spaceships and power rings and monsters and talking animals. It's difficult to get him to read anything else, and I certainly don't want to set up a dynamic where the only books he reads with black characters are the "boring" ones.

I've been doing internet searches and not coming up with a lot.

Here are three so far:
Bear on a Bike: this is below his level, but I think he'll really like the pictures.
I Need a Lunchbox: "A black girl is beginning first grade and getting all sorts of goodies, in particular a lunch box for which her little brother yearns with a single-minded passion. [...] At last, on his sister's first day of school, their father surprises the boy with a spaceship lunch box of his own." I think Sunny could really relate to the story.
Chinye: A West African Folk Tale: This story is very similar to Cinderella; it looks exciting and full of action.

What I'm really looking for is a rhyming picture book of a black truck driver with a talking animal sidekick whose truck can transform into a spaceship to fight monsters. As Sunny says, "that would be AWESOME good!"