Since having just one hand, I'm interested a ccw gun. I've got an old Taurus model 94 .22, that I can fill nine chambers with .22 quikshot ammo.
The other option is for a snub nose .38, and the arm doesn't like a hot load with a scandium frame.
The Beretta .32 Tom Cat is my favorite of the three. But I have heard good and bad about them.
The 22 with a high speed segmenting ammo in revolver that I've shot for years, seems to be the best for me, 9 rounds versus 5. But, the .32 is tempting, a gun that I can manage until I get a fail to fire, or jam.