Adding fish to 36gal reef

Hey everyone, I am fairly new to the reef aquarium world.

I currently have...

-36 gal. tank
-(1) 4"-5" torch coral
-(1) small bubble tip anemone
-(1) 1"-1 1/2" cinnamon clown
-(1) pj cardinal
-(1) dotty

I would like to get one more fish. I really like the pygme angles (but I know you have to watch them with coral).
I was also considering another clown, but am nervous about adding with the one I have now. Suggestions (same species/different species/size?)