In days gone by there used to be a greater selection of small revolvers than there is now. Colt made a range of small frame revolvers and S&W even had a number (well, at least two) of other frame sizes before the J Frame. Many of these were available, at least sometime, in a whole range of barrel lengths up to six inches but most were in calibers other than .38 Special. Most were .38 S&W or .32 S&W or the Colt equivalents.
S&W again has a small frame in four and five inch barrel lengths, although they have adjustable sights, which you may or may not want. The model 60 is the one to look for and it is considerably smaller than the K and L frame sizes.