welcome to the forum! this is an amazing place to get information. check the tech/faq sticky in the technical forum for a huge list of available lift kits. i would recommend something like 3 inch lift with 31's or 32's, regear maybe and definitely some recovery points before anything else. are you looking to rock crawl, mud, or what? what rear axle do you have? for a dd i run the BFG al terrains and i have also run the pathfinder all terrains, both i would recommend. you will need to trim a little with 31's and a lot with 32's. bumpstops swaybar disconnects. im running 3 inches and 31's on my 98 limited so if you have any questions pm me or ask on here. good luck and welcome again!
98 XJ on 32's and 2-3" lift, locked, armored, and ready to rock.