I have carried a J-frame for years in an El Paso rig like the one above. I have also used an Uncle Mike's rig. I have a couple of others but they're locally made so unless you're at a Dallas Markey Hall gun show I can't tell you where to find one but they're very much like the El Paso rig.
For IWB carry I strongly recommend anyone's version of the famous Summer Special. EPS, Galco. Milt Sparks, etc.
For OWB carry I recommend a Model 10 snub. Why bother carrying a J-frame that way? I do have OWB holsters for J-frames but I can't recall the last time I used one.
***GRJ***