Keltec .380 or 9mm
It’s the best deep conceal. Only drawback, no safety. I carry without one in the chamber. When i pull it out, I am trained to rack it.
If you cannot rack a handgun reliably, go with a wheel gun.
you won’t believe how light and concealable it is.
No active safety is a positive aspect. An empty chamber is a negative aspect. Millions of people carry a pistol with passive safeties and one in the chamber every day without any issue. I carry my Glock 23 with one in the chamber and I know it will go bang when I pull the trigger. When you carry without one in the chamber don't expect the bad guy to give you a break so you can rack a round, assuming you have two free hands to do so.