Any long side Dana 30 shaft will work.
Best 1s to look for would be.
95+ XJs (although 91+ XJs/MJs will work, just use a smaller u joint)
All TJs
and all ZJs
Also some ZJs used CV style axleshafts over a conventional U joint setup, these will swap over as well if you so desire.
Check around online and ebay, they usually don't go for too much money ;)