Yes, there are quite a few dwarf cichlids to choose from and your 10 is just right for them. Check out any of the genera Apistogramma. For a really bright and beautiful little fish, check out the Ram also known as Microgeophagus ramirezi. If you might be interested in an African cichlid, there are genera Lamprologus and Julidichromis from Lake Tanganyika. If you're more into the Lake Malawi variety, check in to the Pseudotropheus and Labidichromis. These are all in the 2-3 inch range and will even breed in the 10
gal. Many of them are very colorful and a delight to keep.
Logan J