What should my new fish be? need suggestions

[kojack]

80 pounds live rock 55 gallon tank.
Currently:
Yellow Tang
Lawnmower blenny
Clown
Royal Gramma
2 blue chromius.
Corbanded shrimp
cleaner shrimp
What should my next fish be can i fit another fish all fish i have now are smaller in size??????
I was thinking
Hippo Tang
some type of angel.

 

[bang guy]

A 55 is too small for a Hippo. IMO your tank is already fully stocked so if you want more fish they should be small docile species like Neon Gobies.

 

[fishmamma]

I was also going to say gobies. They are a cool fish to have around.

 

[mudplayerx]

I have to agree about not getting anymore fish. I know that is not what you wanted to hear