4" 357 mag can do most things with the size and ammo selection available. A GP100 or 686. For a k frame size S&W 13, 19, 65, or 66 or find a Speed or Security Six.
If you go for the smaller frame shoot mostly 38s. Stay away from lighter (under 140 grains) bullets with a k frame Smith.
Contrary to what many say I also like Taurus. I have a 669 from 1988 that's had a bazillion rounds of 357 through it, never has any issues, and is still tight. Trigger not as good as a Smith or Ruger but you can work with it.
If you go for the smaller frame shoot mostly 38s. Stay away from lighter (under 140 grains) bullets with a k frame Smith.
Contrary to what many say I also like Taurus. I have a 669 from 1988 that's had a bazillion rounds of 357 through it, never has any issues, and is still tight. Trigger not as good as a Smith or Ruger but you can work with it.