Two good ones - -
The Browning Buckmark comes in several versions. I prefer the most standard version - - No rail, no scope, just good, square, black sights. Some years ago, I gave one with the 5-1/2" barrel to Elder Son for his first handgun. It worked so well and was so much fun, I later got a 4" bbl version for my own use. The shorter barrel pistol fits well into US GI hip and shoulder holsters for field use.
Thirty-some years ago, I blundered onto a brand new-in-the-box S&W Model 34, the .22/32 Kit Gun. It had the 2" barrel and round butt. I thought it would make a good training piece for my wife's Chief's Special, and it did. But more than that, it is a wonderful piece to drop into a hunting vest. VERY high quality, and it's difficult to believe how accurate a short barrel revolver can be.
The M34 is discontinued, and nice used examples are a bit pricey, but I believe it is an excellent value. The current incarnation of this concept are the Models 317 and 317 Kit Gun. I have no personal experience with these, but they have the added advantage of being very light weight revolvers.
Best,
Johnny