Fish stocking suggestions please! :D

Howdy! I've been away from 3reef for awhile, but I always recommend it to people when I come across them in LFS' here in SA and Austin.

So now I'd like to ask ya'll's opinion myself! I've a 190g FOWLR with large sump/refugium. Tank was up and running in January and we're (wife & I) are still slowly stocking it. My question to ya'll is what would you like or suggest to go with our current 'friends'?!

One each of: 5" Emperor, 4" Blueface, 4" gold spot rabbitfish. Tangs; 6" Lt., 4" Orange shoulder, 2" blue and 3" Naso. 3" Japanese redfin waspfish, 5" Dusky Wrasse. I've a complete CUC and aside from occasional "I'm the boss" stuff from the Emperor and Lt. everyone gets along well. We're thinking either a small school of yellow tangs. Anyhoo, we'd like to keep the stock fairly low-key/friendly and able to keep a cuc. Any thoughts of what would be a good addition(s) all suggestions greatly welcomed. Thank you! ;D

 

First off the list is the emperer and naso. I wouldn't get any more or even gid rid of one more tang. I would only get one yellow tang if you want one.