The first thing is, you have to ask yourself what features you want on your sidearm. What action do you want? For me, I wanted a striker fired pistol without a manual safety. Basically, I wanted a pistol set up just like a Glock, but not a Glock. I never have warmed up to Glock pistols.
After doing some searching, I found the ultimate striker fired pistol IMO. The Caracal C. It's an awesome pistol that is set up just like the Glock, but made to fit human hands.
I carry the Caracal everyday and absolutely love it.
As far naming one that's right for you.....well, only you can answer that. It all depends on what features you want, what size you want, what capacity you're comfortable with and what feels good to you.
Here's what I'll recommend and I'll stay with what I know and like......
Striker fired compact - Caracal C
Same size as a G19, but with waaay better trigger, 15+1 capacity, sight radius of full sized pistol, very low bore axis, very ergonomic, Most bang for your buck in this category ($400-$425)
Double action, hammer fired compact - CZ PO7 Duty
Good size for CC, 16+1 capacity, able to change from de-cocker to manual safety, CZ's Omega trigger, very ergonomic, Most bang for your buck in this category ($450-$475)