Well that's your call. If I had to do it again, as far as fish, black and white clowns, they look awesome. A good fish for your tank would be a sixline wrasse, small fish, always darting in and out of the rocks, I like mine. You'd have to read up on how many you could house (if there's not enough LR
a pair could fight, possibly to the death) but I also have a firefish, very cool looking little fish. Finds a hole or cave to call home and will kinda "hover" above it, anything scares or startles him an he shoots back in. I'm not sure the number of fish that you'll be able to house but some good starter fish for sure.
This is where I like to research the fish I buy, haven't actually bought anything from them but its a good way to learn