I second the recommendation for the 357 Magnum 135 gr Gold Dot short barrel.

Like the previous poster said. They are a nice step up from the 38sp +P version, but not too ridiculous in a small snub. I've shot them in my LCR 357.

A step up from there would be the 125 Gr Gold Dots. More power, but really intended for a longer barrel. Haven't tried them in my LCR, though.