Larger fish for 4' tank suggestions?

[Boxfish]

What are some larger scale fish that can do well in a 60-90gal tank? 4-6" adult size is about max correct depending on their activity? Assume no other fish are in the tank yet, reefish safe, min 4' tank length. Thinking for future tank.

 

[nereefpat]

60-90 gallons is a bit of a range.

A standard 75 or standard 90 gallon has a footprint of 4 x 1.5, and would have some options for bigger fish.

Some options for 75/90 would be:
Ctenochaetus (Bristletooth) tang
Fuzzy or zebra dwarf lion
Any of the dwarf angels
The biggest fairy wrasses like ruby head
Halichoeres wrasse like melanurus
Maroon or clarkii clown

Hope that helps