Interested in subcompact 9mm pistol. Glock 26, Springfield xd subcompact, H&K p2000sk, kahr pm9. What's best?

I own and carry a Glock 26, and it has been 100% reliable for the last couple of years. However, I will say that it is not the ideal concealed carry gun for me. If I had to make the decision all over again, I would choose the Kahr, it is a thinner and lighter pistol that is better suited to inside-waistband holsters, which are the best for concealment, in my honest opinion. The Kahr is very high quality, and more accurate than most shooters.