The first thing that came to mind, is that you were probably wanting to bracket to use some of the latest and greatest software (or techniques) to create HDR images. lol
I use bracketing mostly in rapidly changing lighting conditons (for example, live music where stage lighting is constantly changing and you don't have the luxury of time on your side to get the exposure just right).
Unfortunately, I don't know of a good way to narrow down your choices, other than reading through the reviews of models that meet your other needs (size, weight, resolution, ISO speed range, focal range, etc.), and see what the specs show for bracketing, looking at the menus in the reviews to see what the options are (you'll find sections in our reviews that show most of the menu options).
I don't keep up with the newer digicam models as much as I once did. So, this is something that I haven't paid much attention to (bracketing capability is not usually something most buyers of compact digital cameras look at).
I did glance though the
Best Cameras List yesterday and noticed that the Coolpix 7900 has bracketing capability. But, we didn't cover all of the available options in the menus, and I haven't taken the time to track down a user guide to see it's limitations yet..
That's probably the route that you'll need to take.... looking through the specs and record menu options in the reviews for models that meet your other criteria, then visit the manufacturer's web sites and look through the user guides to see any detail that wasn't covered in the review.
The Nikon models like the Coolpix 7900 would probably be a good place to start looking, since it looks like most of the smaller camera models from Canon left out bracketing ability.