Ive also owned many of the guns mentioned here. Here's the rundown with my personal experience with them:
Walther PPK/S: Beautiful, well made, constant jams, moderately difficult to "rack",
Sig P232: Beautiful, well made, reliable, very easy to rack, recoil stout due to very light weight,
Sig P250: Very easy to rack, reliable, very long DA-only trigger making target work challenging, but fine for close range self defense,
Sig P238/Colt Mustang/Kimber Micro: All essentially the same gun. These are great IF you are comfortable with a single action, very easy to rack, excellent short trigger, reliable, slim and (depending on the exact model) light, pricey-but worth it
Beretta Cheetah/Browning BDA .380: Difficult to rack (the Browning is much better), excellent construction, reliable, heavy in this category, but probably not too bad for a purse gun, $$ but hold their value,
G42: (striker fired, I know), probably the easiest to carry, very long spongy trigger, reliable, snappy recoil despite locked breech
Beretta Pico: A hidden gem here (the bigger Nano seems to get all the press), great ergonomics (especially with the extended mag), all steel construction except for the interchangeable grip frame modules, hammer fired DA only), locked breech, with rebates and such they are practically giving these away right now
So there's my 2 cents, good luck!