Hi harry
Ive not kept corals for a while but if i remember right, sea fans are rather hard to maintain. Needing good water quality, they also need to be fed.
Look into zoanthidd polyps, they come in many colours and are easy to care for, spreading fast. They also make a good coral to try your first fragging experiments with, which if youre like the rest of us, youll be doing soon enough haha.
Other good lps include frogspawn corals. They are a little more hardier than torches.
Plate corals are relativly easy to keep to.
After youve had some experience with corals, you could look into sps like montiporas and acroporas. When you get the water right, these corals look just great and grow at impressive rates.
josh