welcome01 to the forums from the Wiregrass! There are lots of holster makers that make OWB models that'll fit your safety hammerless. Something for a 3.5" J frame should work. Here are some.
I happen to have a 4" clip-on left hand with a thumb break. This is it holstering my .38 Regulation Police 4-1/4". I don't know the manufacturer except it is top grade so could be a S&W or Desantis brand. PM me if you are interested and we might make a deal.
UPDATE: I did a little more research. It seems this is a Ted Blocker IWB model although I see no reason it couldn't be worn OWB. Seems to me the snap is backwards for an IWB. <shrug>