HUKIT
Aquarium Advice Addict
I am also kind of liking Thoracochromis brauschi
I've never seen or heard of those before but the pictures look cool, they sound fairly aggressive as well. I had had Neolamprologus Brichardi in a 40b species tank before, they are some of my favorites, not the most colorful but the way they interact and raise fry is great. There's alot of Tangs out there that will work but unfortunately rarely seen in out hobby.