I have generally defaulted to carrying revolvers, since retiring from LEO-ing. My right hand, that is not aging as well as my left hand, is a significant reason. In my individual case, the SP101 remains a good weapon, for my right hand, as the factory grip is just long enough to brace well against the “heel bone” of the hand, enabling a level of stability that helps the SP101 handle more like a service/duty weapon, than a pocket gun. My somewhat-gimpy right thumb can still lock-down, firmly, to provide a decent hold, on the grip, in case an incident reaches physical-contact distance.
J-Frames have been too small for my hands, unless fitted with an over-sized grip. I reckon that if the grip is going to be larger, it is best to carry the overall slightly larger weapon. When I bought my second spur-less-hammer SP101, in 2002, soon followed by another SP101, with a standard spur hammer*, it mostly put my J-Frames out of business. I have rather long, if not wide hands, but do not have long fingers or thumbs. A best fit, for me, is not a best fit for everyone else.
Add me to the list of folks who like K-Frame snub-guns. In the 2018 to 2020 time frame, I added three 2” K-Snubs: a well-preserved pre-Model 10, a 64-3, and a 64-4. These have a sixth chamber, plus, more room to work, when the cylinder is swung open, to extract and load, a tremendous advantage over the five-shot weapons.
If/When the time comes, that I need to let a doctor cut on my right hand/arm/shoulder, I am well-set, to carry everything on the left side, for a while. I have tended to carry secondary/tertiary weapons, positioned for lefty/ambi access, since as long ago as the mid-Eighties. I have lefty holsters that are as good as my right-hand holsters.
*I wanted to have one SP101 that I could use with a holster having a retention strap.