Btw, SP, I believe regular glass cats get 6", but minors get only 3", which would make sense of the added "minor".
-DP
I just did a quick search on glass cats and saw the 6" is why I wrote that .... I did notice after I posted that the minor do stay smaller.
So with that cleared up...
1 Angel
1 Raphel (since you have it and it needs out of your 10g)
6 Glass Cat Minors
6 Cories
Or either of the ones Dwarf Puffers posted would probably work too.... But if you went with Otos you might want to wait until the tank is more matured so there would be some algae for them to feed on.