I found a Inside the Waist Band (IWB) holster for my hammerless .357 revolver. It isnt actually hammerless, but a 'zero-profile' hammer, but it works out to be much the same. Since most holsters depend upon a strap behind the hammer to keep the gun secure there is a lack of concealed carry holsters for mine.
However, the good people at DeSantis have provided me with a worthy option. One of the other holsters I have been looking at is the Thunderwear. It is best to have multiple holsters for each gun for the various occasions one comes across. (Dressing up, dressing down, semi-dressy, play etc. etc.)