Andrew has produced a video about choosing the right concealed carry gun.
I think Andrews advice is solid. I would point out that ultra-compact pistols can’t be imported into the USA, so any European ultra-compacts on the market are actually made in the USA. I would also add that there are plenty of American companies producing reliable compact carry pistols, for example Kel-Tec, North American Arms, Charter Arms, Ruger and Kahr.