For a 90gal, I would go with:
1 male squareback anthias (colorful, not shy, and swims around)
1 tomini tang (colorful, eats algae and swims around a lot)
1 one spotted foxface (colorful, eats algae, swins around a lot)
1 leopard wrasse
1 flame hawkfish (quirky characteristics)
1 midas blenny (graceful swimming fish)
1 orange striped prawn goby
I like fish that swim around a lot and aren't easily spooked. i think the group of fish i listed offer a variety of colors and shapes.
the squareback is a hot pink/red with a purple square on it's side.
the foxface is mostly yellow w/ a black and white face.
the clowns can be orange or black or red
the tomini tang is brown with gold fins and a white tail
hawkfish is red