There is little difference in weight and overall size between my S&W #64 3" RB, S&W #469, S&W #908, Sig P225, Sig P228, or Astra A75L. There is a good deal of difference in firepower. A S&W #457 would be a good choice too. The one I owned would feed shotshells.

A neighbor has a five shot K frame size Taurus #431 .44 special that he carries everywhere.