I used to hunt rabbits a lot when I was younger. Generally, we hunted agricultural areas, cut cornfields, apple orchards, fencerows, and general "brushy" areas. The thicker the brush the better. Look for honey suckle thickets, briars, overgrown fields, etc. We used to also hunt with beagle dogs. When you jump a rabbit with a dog, let the dog trail the rabbit and stand perfectly still. Rabbits will literally run a complete circle when followed by a dog. I don't know how many times I would jump a rabbit without a shot, put the dog on the trail, and a half hour later, they'd be looping back to me and the rabbit would literally run right up on me. Good luck. Rabbits are fun to hunt and great eating.
Jason