Late to the party.
3 inch k frame for 38s
3 inch Ruger for .357 mags or 38s
If I was all in, I might buy 2, one for dry fire/ live fire practice and the other for carry.
Many used models abound v. new.
Some can be had with more modern sights in their latest iterations.
Get some instruction on manipulation and shooting them at speed.
(Don’t be the guy who at a IDPA BUG side “match” uses a borrowed j frame with a very double thumbs forward grip and gets good and burned by some heat coming off the cylinder gap.)
Looking forward to see what you end up with.