You will find the size difference between the G26 and a snubby to be a wash. The snubby will likely fill the role as a pocket gun better because of the shape and size of the butt but at the price of less ammo, lesser sights, lesser shootability, and less firepower. Spare ammo is also tougher to carry. You are much better protected by the G26 in my humble opinion.
If you need something smaller for pocket carry only the LCP or P3AT class of pistol is going to be appreciably smaller than your G26.