Itching for a new fish...need help

Hey guys, love this site btw. Its been about 2 months since I got a new fish for my 6 month old 46 gallon bow front. I really want to get a new fish for the tank because its looking kind of dull. Here is what i currently have in the tank:
1 x Yellow Tang
1 x True Pecula Clown
1 x cleaner shrimp
1 x peppermint shrimp
20 x hermits
1 x nassarius snail
pulsating xenia
frogspawn
mushroom coral

Water quality is great, no real issues, have Coraline growing on everything, and its been about a month since if added any invert, fish, or coral to the tank. Im a beginner to the hobby so nothing crazy, just something that would work in my tank and bring much needed excitement and entertainment Anyways i figure id go to the experts because im not quite sure what fish go with what, so what do you guys recommend i should get?

 

how bout a goby for ur peppermint shrimp?

 

WOW another person who lives in Irvine aka The Bubble! lol very cool lol sorry to go off topic, lol but your the only other Irvinian i've seen

 

Haha, I love the bubble. Lived here since I was 3, great place to grow up. AeLecocq what kind of goby would you recommend? Puffer where your "go-to" LFS? I go to coral oasis.

 

Haha i just started going to Coral Oasis, i was just there on Saturday to get some water, nice family that owns it. LOL i hate the bubble, i've lived here all my life and can't wait to get out.

 

whatever type you want.. maybe a watchman or something

 

I like the idea of a goby. Great additions to a tank. I would shy away from larger fish. That yellow will eventually max out your tank.