If you really want an oddball, try to locate a 5” M60 or 5” M63. 😁
I have no idea why S&W went with 5" barrels on those. Always figured a 4" .38 Special Kit Gun would be ideal - basically the exact same configuration as the original Model 63 but in .38.
The 3" Model 60-4 is pretty close but it just never made sense not to reproduce the Model 63 in a center fire. They did make one in .32 H&R Magnum but they only did that to make people kick themselves for not buying one then, now that they cost two arms and 1.5 legs...