If the red carries self you could get a couple blacks or otter and broken blacks or otters and if the broken black carries non extension you might get a tortoiseshell.
Depending on the hidden recessive genes your two rabbits carry you could get other colours but the chances are less than 25%.
If the red carries self, you could get black or black otter in broken and solid. If the broken black carries non extension, you could get tort or torted otter(fox) in broken and solid.