Orchid pseudochromis (make sure it's P. fridmani...) is a good choice for a shock of color. A pair of ocellaris or percs should be fine, firefish are good with peaceful tank mates, most any goby that isn't a sand-sifter would be fine as well. You have a good deal of options. I would just start browsing member tank threads and various online shops. Research what you like, ask questions as necessary, and go from there.