If you want a dog that can be lazy AND drivey, I'd say get a Doberman But I'm biased!
I've seen some nice AmStaff breeders but I couldn't recall the names off them off the top of my head, but I'm sure some other folks here can.
I've always admired Dobes from afar, especially the natural eared ones like Bonnie! Very sweet faces. But the fiance doesn't want a dog bigger than an AmStaff. His idea is that we should never have a dog one of us can't easily pick up and carry if something were to happen. Kind of a random thing to worry about, but I agree. He might be able to pick up a Dobe, but I sure couldn't! haha