What lights are you running, how much flow do you have, what are your testing parameters, how often & how large are your water changes, what corals do you already have???? All important info before recommendations can be made....
jlsardina is correct... there are hundreds
of variants of zoas/palys. Tons of great looking mushrooms that are easy to keep. Some of the easier to keep LPS
like metallic green trumpets & candies really
pop. and if your lighting & water conditions are good, you have plenty
of room to house some of the more aggressive LPS
like hammer, torch, and frogspawn, which are readily available these days.
Again, a lot depends on the questions above.