Glocks are not bulky.
Glocks are not inherently larger, nor are larger guns always Glocks.
Your statement that smaller semi-autos are inherently less reliable is, in my experience, utter nonsense. I routinely carry a Glock 19. My wife prefers the 26. We own everything from the tiny little 42 and 43 to a suppressed extended slide 41. We also own 1911s in single and double stack variants. Sig-Sauer, Ruger, Para-Ordnance, Bersa, Beretta, Taurus... we have them all. The difference in reliability is non-existent. All of our guns have had thousands of rounds run through them without issue.
Your comment about unavailability of double action semi-autos is also completely wrong. Ruger, Beretta, Walther, Bersa, and others all sell semi-autos with safety/decockers.
I am talking about the really small ones, Glock 19, 26 is NOT small in my book. I spent years conceal carry when I was young, it got really heavy. To me, small and light is like 14oz. When I talk small for conceal carry, I mean like Ruger LCP, Kimber, Seecamp type. We have a different definition of "small". Go on youtube, those really small ones are not all reliable. It's all on luck, some swear by it, some have problems.
You have less small true double action semi auto now. I am glad I bought a Wather PPK, it's not light, but at least it's slim. It's a true double action. I've been looking, if you have a 15oz to 17oz semi with true double action, let me know.
I wrote it wrong, I have a glock 26, not 36. It's big in my book!!! It's so thick it's not very carryable. Only like ruger LCP type I would consider carryable. I carry my Glock only if I anticipate trouble.
I have a few Beretta 92 .25ACP, it's very reliable, but small caliber. If you try looking for 9mm that is about 15oz, you will find it's hard to find a true reliable one. Go on youtube to LCP and some Kimber, it's NOT reliable. This is physics. The more powerful the rounds, the heavier the slide has to be. If you cut the weight, you have to put a stiffer recoil spring. Then the tolerance of the spring becomes very critical. Too light, it can be dangerous, too heavy, you might fail to cycle. That's why some people swear by Kimber, some trash it.