I carry a SW638 Airweight. If you get a J-frame, there are 3 simple improvements you should make. First, get an Apex Tactical J-frame spring kit. It noticeably reduces and smooths out the trigger pull weight while providing complete reliability with all types of ammo (and all types of primers on my reloads.)
https://www.apextactical.com/blog/index.php/random-apex/new-j-frame-kit-press-release/
Next, get a Hogue full-sized rubber grip that will allow you to hold the weapon with three fingers of your right hand and greatly improve your accuracy. These Hogue grips do not print when I use a good IWB holster and wear a Hawaian shirt.
https://www.apextactical.com/blog/index.php/random-apex/new-j-frame-kit-press-release/
Third, paint the tip of the front sight a day-glo yellow or orange to improve the sight picture.
Five-Star speed loaders are the best I have found for small five-shot revolvers.
http://www.5starfirearms.com/J2-357-38-Accessories-s/130.htm
And then practice dry-firing, a lot of dry-firing.
https://www.apextactical.com/blog/index.php/random-apex/new-j-frame-kit-press-release/
Next, get a Hogue full-sized rubber grip that will allow you to hold the weapon with three fingers of your right hand and greatly improve your accuracy. These Hogue grips do not print when I use a good IWB holster and wear a Hawaian shirt.
https://www.apextactical.com/blog/index.php/random-apex/new-j-frame-kit-press-release/
Third, paint the tip of the front sight a day-glo yellow or orange to improve the sight picture.
Five-Star speed loaders are the best I have found for small five-shot revolvers.
http://www.5starfirearms.com/J2-357-38-Accessories-s/130.htm
And then practice dry-firing, a lot of dry-firing.