I've yet to put my hands on a "smaller" gun that seemed comfortable (to me), I'm sure one exists, and I'll eventually find it since I would like some kind of EDC at some point (sooner than later). Maybe a Hellcat? I remember there was a little S&W M&P variant that was pretty comfortable, but I think it had a longer mag that made the grip "feel" bigger...I should have bought that one....
Now, my better half frequently (but not always) carries a Glock G43X MOS, but she's been wanting to add some kind of a smaller caliber "car gun" for the times she's not carrying. She's been eyeballing the Ruger Security 380, she likes that it's basically the same overall size as her Glock, but has a 15+1 round count albeit the less potent 380 ACP round.