Coil spacers are like $45 a pair for a TJ 1.75 inches.
I would go with a system. Maybe $600 bucks depending on the system brand. You get 2 inches some new springs and shocks. A lot of the stock suspension stays. Put 31 inch tires on. You would be off to a great start.
all these were found with a search on "spacer lift" more are available if search for other words...
Body lift is not better - IMHO
As mentioned you can get 1"-1.75" spacers individual... if just going for "looks" on a street Jeep - these are cheapest and should be fine.
If you actually plan to go off road (please do), than a "spacer kit" ($300 range) is best as this will include spacers and longer shocks and bump stop extensions (important items).