What size tank do you got? It looks like a 36 gollon. If that is right, you could a variation of the following stock
8 schooling fish( tetras, rasboras, or barbs)
6 Cory catfish
1 dwarf gourami
1 apistogramma
1 Bolivian or German ram
3 swordtails
3 guppies
You could change the solatary fish to your likings, but it would be more helpful with some information