How does black rice cook?
I used black rice in different recipes. It clearly take longer to cook than normal rice, the grains remain separate and its generally harder than normal rice (I would say something similar to wild rice, but more mealy).
As you said, it's not suitable for risotto per se, but I once made a risotto with normal rice and almost at the end of the cooking I added some (already cooked) black rice, which added a nice color and texture.
The taste is quite strong, so you might want to avoid foods that are too mild in taste. A good combination for me is with peppers, olives and feta cheese, possibly mixed together in a cold rice salad.