Reef tank help part 2?

ok everyone said don't get an anemone. i have a 20 gallon tank. i have a reef sun 50/50 lightbulb. it is high output and great for corals. i also have a heater, a power filter, and a powerhead. i would like some suggestions as to what corals and what fish i should put in my tank. i want polyps, clownfish, firefish, and whatever else you all think i should get. thanks for the help in advance!