I agree with everyone else, damsels are just too aggressive. I had an azure damselfish when I first started, and he went after everything (including my puffers)!
I have had green chromis successfully, and I have seen those blue reef chromis online and wanted them because they are really pretty fish. While these are technically damsels, as are clowns, they seem to be very peaceful and school nicely.
Clowns are always great. I love them. I’ve kept ocellaris and percula clowns, and they are awesome fish. So much fun to watch.
55 gallon reef tank. AquaticLife 4-bulb T5 HO with 4 LED moonlights. Reef Octopus BH-1000 HOB protein skimmer. TLF Phosban Reactor 150 running 400ml of NPX Bioplastics with a Maxi-Jet 1100 and a BRS Reactor running activated carbon with a Maxi-Jet 900. Vortech MP10w.