There’s a huge selection of pocket guns on the market. Most would recommend 380acp. That’s kinda hard to find right now. There are some 9mm pocket guns, 9mm isn’t hard to find right now, it’s just inflated.
Some people would carry 22 lr. 22 is rim fire , I personally would recommend sticking to center fire for reliability, that being said, some people will carry a 22 gun.
Pocket pistols or small revolvers can easily be carried on an ankle. Another option could be a belly band. If you choose to pocket carry, buy a pocket holster and designate one pocket to be for that gun.
I’ve heard of people ankle carrying a shield or g43, but I think they’ll be a little much. Those are really belt guns.
Pocket pistols, I’d look into the Rugar LCP or something like the Rugar LCR (ones an auto loader, the other is a revolver).
Here’s a fun video.
