BERETTA or SIG
My choices for pocket guns are the ones that have worked for me. They have all proven concealable and reliable.
A SIG 232 aluminum frame model in .380ACP with night sites is my first choice when I am wearing clothes that will conceal it. It is light, very reliable and very accurate. It is not that small, but very light and recoil is not a problem with this pistol.
I use REMINGTON .380ACP jhp in the 100 round boxes. This is not the most powerful load, but it feeds perfectly and is so inexpensive, I use it for carry and practice.
The BERETTA Tomcat model 3032 in .32ACP is my second choice. It is lighter and much smaller than the SIG. It is also very reliable and easy to shoot. I carry it when my clothes will not hide the SIG.
I use COR BON Powerball for my carry load and either AGUILLA, FN or S&B for my practice ammo. The WINCHESTER White Box ammo with their flat tips would not feed reliably in the TOMCAT.
I used to use a S&W model 38 in .38 Special, but the SIG holds more rounds, is quicker to reload and comes with night sites. That relegated the S&W to the safe.
I would prefer a mid size 9m.m. like the BERETTA 92 Compact, GLOCK 19, SIG 225 or WALTHER P99 on my side and when I go out for a walk at night, that is what I choose.
The pocket guns are with me the rest of the time as they just disappear.
Jim