Tank mate help.

Recently I was able to buy a 75 gallon tank, and since then ive been planning what fish I want to put in it. The fish that is a must have is a fuzzy dwarf lionfish. Since then i have been thinking about maybe adding a snowflake eel to my list of things to get. I know a little too much about the dwarf fuzzy as its the whole reason i decided to get back into keeping fish. I have no idea what kind of clean up crew will be suitable for the possible tank idea with the lion and the eel, as well as other fish.
I need help deciding what fish and what i can put in the tank for a cleanup crew