For starters, never let numbers in a poll decide what fits you! You are a unique person, with unique dimensions.
Secondly, a G26 may work no better for you than a G19. If it is the outside rear corner of the slide that is printing against your clothing, well, that dimension of a G26 is equal to the G19. I found a G27, which has exterior dimensions the same as a G26, no easier to wear in my favored 0300-0330 position than a full-sized G22 duty pistol, because the outside rear corner of the slide is what prints when I wear a gun at that position. I sold the G27 and just carried the G22, or carried a revolver in that spot. Then, I switched to a SIG P229, which because the rear of the slide does not need to enclose a striker mechanism, conceals easier for me than any Glock.
That same rear-protruding side works against the Glock for pocket carry, too, and especially when trying to draw the weapon from the pocket, compared to a snubby that has no hammer spur.
I am not saying Glocks are bad. Your G19 is an excellent pistol, if it fits your hand. (I got away from Glocks due to fit problems; the better concealment was a bonus.) Having a spare weapon that uses the same magazines and holsters as one's primary weapon is a good idea. I had a spare G22, just as I now have spare P229 pistols.
I am sure you would find some use for a G26. OTOH, my attempt to replace a snubby with a G27 did not work so well; I went back to using the long-familiar snubby for ankle and pocket carry.
FWIW, I live in your area, so the climate is the same. I am 6' tall, and wear pants sized 31" to 32" in the waist