there are many types..MORE from Mountainoffroad.com or teraflex (which I went with and VERY LITTLE grinding) from DC4wd just for starts...
2005 Unlimited Rubicon Hard N Soft Tops, Clayton Long Arm on RE Coils, Warn Bumper/Tire Carrier, Warn Winch N Bumper, Currie Steering, JKS Quicker Disconnects, JKS Front Trac Bar, Bilsteins, CO2 System..Yada Yada Yada
I used MORE brackets on mine. They were very good quality and fit very well. Plus you can buy each bracket seperately if you need to. That way you don't end up with brackets you don't need if you go with a 3 link rear, or want to go with Nth degree shock shifters, or something else.