The perfect pocket auto doesn’t exist yet. It may never exist. The Glock G42 is close but it’s in a sub optimal caliber. The Kahr PM9 is also really close but the weird light double action trigger and I just couldn’t learn to get along.
I really like Sigs. The P938 seemed to be everything I wanted in a pocket auto. Small for a 9mm (it’s the same size a a 42. Maybe even a touch thinner.) accurate, acceptable recoil, and damn good looking at that. The trigger isn’t great but could be fixed. It’s two biggest cons are the need to use the safety and the price. Even with Sigs IOP program expect to pay North of $600 out the door. For Glock guy that’s two pretty big cons.
I don’t like to pocket carry very often. Lounging around the house and times when a tucked dress shirt and slacks are required in public are it. If the P938 was my only carry pistol training could overcome the safety issue and the price would probably be less painful too. And out of all the small pistols I’ve tried (there are several others including the P290, PF9, revolvers, P238, Bodyguard, etc) the Sig 938 has been my favorite.
So the perfect pocket auto may not exist but maybe there is one that’s close enough.