My first ever handgun - which was also my first ever firearm - was S&W Model 686 with a 6" barrel. I still have it today.
I would not consider, nor recommend, that you buy a new Smith. However, there are many used revolvers on the market in excellent shape. I would suggest (since you offered the gun would be used for target/range) a 6" barrel.
The 686 is stainless & built on S&W's "L" frame. The "L" frame has the same sized grip as the "K" frame, which the Model 19 is built on (and also the Model 66, which is the stainless version of the 19). However, the "L" frame is a little bigger in some areas & has a heavier barrel. It was designed around the .357 Magnum cartridge.
The Model 28 is a .357 Magnum built on the "N" frame, which was designed to fire a .44 Magnum. It is larger sized frame, cylinder, etc. & is very capable of handling a steady diet of .357 Mag loads.
Of course, the Smiths are all DA revolvers. A nice used SA Ruger Blackhawk would serve just as well as a target/plinking gun, and would probably be available for less money, and they are built as strong as tanks. I don't know that they are (or were) offered in a 6" barrel, but if not 5" & 7" were probably available & either would suit the purpose.
Lots to choose from!