I would do triggers and some tangs. If I had to really narrow down tangs, I would with a purple, naso and atlantic blue. I personally love clown tangs as well but it will give you a hard time and supposedly they're not easy to keep.
Right now in my reef I have a pair of bluethroats, a niger, a black hawaiian triggers and a pinktail. They all seem to be doing well together except for the hawaiian and the pinktail sometimes go at it.
Some wrasses would also be good and a school of about 5 anthias would also be nice.