There's definitely a limited selection, but there are some available. I'm running Super Swampers SSR 37x12.5 on 16" bead locks. Its a fairly decent on/offroad tire. Not bad on the highway either.
YOu might consider the Super Swamper IROKs as well, but they suck on road
What type of tire are you looking for? a MT? AT?
2008 Rubicon 2 door 6.5" lift, 37" Swampers, RR narrow tube fenders, reinforced axles, long travel shocks, Rubicrawler 10.88:1, Allied Rockathon Beadlocks, AEV snorkel, Warn winch, purejeep rocker guard, stubby tire carrier, plus a ton of other mods.