I would go with some type of judo point. If you look up any of the small game heads online, they should all work about the same. Since rabbits have such a thin hide its likely that you may get a pass through or at least decent penetration with some of those tips. But the biggest thing for me would be something that doesn't go into the ground so I'm not loosing a bunch of arrows and any of those should do the trick. If you are hunting for meat, try a bird judo point so you don't get as much penetration. Try some out and see what happens, happy hunting.