Glock or Springfield Armory.. can't go wrong there. Reliable, comfortable, easy to shoot, no manual safety to have to worry about for carrying
Glock 19, 26 for your compact and subcompact 9mm
Glock 23 or 27 for compact and subcompact .40
I never carried a Glock, but having handled the 19 and 23 enough, I think I could carry it comfortable... but if not, then the subcompacts (G 26/G27) are perfect for carry.
I do own a Springfield XD-9 and I could carry it if needed, but probably a bit too big for daily carry.
They do make subcompact models like this
and it comes with an extended magazine to give you a bit more hold on it if you choose. That'll come in 9 or 40 depending on your preference.
I'm sure other NTers could throw out some suggestions, but I think Glock or Springfields are great choices.