If i were to get rid of these fish what other fish could i get???

I would look into PJ cardinals, royal grammas, Green Chromis, Flame angel if your tank is mature, 6 line wre, male McCosker's Flasher Wre are neat fish, Double Saddle erflyfish, Lemon Peel if you don't have corals...they are reef caution. Coral Beauty, Clown Goby, firefish, Flame Hawkfish, Heniochus Black & White erflyfish, longnose hawk, dartfish, I did not check the compatibility against the eel, but they will live with the rest...