Need advice for fish!

[Jake]

Hello everyone!
Im setting up a new tank in about 2 weeks and i wonder what fish i could add to my reef, here's my list of what i have in my current 32g, the new tank will be a 44g 32x16x20!

The tank is 2 years old

Current live:

2 oscellaris
1 firefish
1 sixline wrasse
1 bumble bee goby
1 green clown goby
1 cleaner shrimp
1 fire shrimp

Many Monti's(Cap - Digi), LPS's, softies and a crocea clam


I was looking for a Dwarf angel, my LFS has a Singapore, but not sure if ill nip at my clam or my Monti's!

Tx for your advice!

-Jake