Best Beginner Fish For 24 Gallon Cube

[TAO78]

Hello,
I finally have my tank back on track and would like to add another fish or two to cap it off! I currently have a fairly low stock consisting of 1x Ocellaris Clown Fish, 1x Yellow Watchman Goby, 1x Pistol Shrimp, Miscellaneous CUC, I also have a few corals ( Zoas, Kenya Tree, Hammer). I'd love to hear some ideas for reef safe, beginner friendly, nano fish.
Thanks!

 

[Gumbies R Us]

I’ve got a fire fish in mine, relatively cheap fish, and are enjoyable, hardy fish as well!

 

[RedoubtReef]

Tailspot blenny would be great in there.

 

[Uncle99]

Another Ocellaris to pair (1/2” size to ensure male).
A Royal gramma.

 

[fishyjoes]

I have a 20 gallon with 2 clowns, a yellow watchman goby, and a springers damsel