Your present shocks are likely ProComp's ES-3000 which is a notoriously stiff-riding hydraulic shock. If you like that stiff ride, but few do, then Rancho's R5000 (also a hydraulic) will give a similar stiff ride.
Skyjacker's Nitro shocks will give a similarly stiff ride, their Hydro shocks are less costly and give a better ride.
If you can spend a little more, OME's Nitrocharger shocks are superb. They give better handling with a "firm" ride but it's not too stiff at all. Rancho's R9000XL is adjustable from soft to extra-firm but it to is going to cost a little more. Rancho's remote control kit for the R9000XL is strictly optional, it is not required.