55 Gallon, Fish Needed

I've had my 55 gallon set up for a year and planted for about two. I have an African Leaf Fish (Polycentropsis Abbreviata), a few small Sunfish, and a Dwarf Pleco. I want to add a few more fish. I was thinking another leaf fish or maybe two, a Pictus Cat(Pimelodus Pictus), and maybe a Banded Dwarf Cichlid
(Apistogramma Bitaeniata). Will they get along? If not, what should I would you suggest?

Peace,
-Stu