I also have the 26 Gen 4. I use that for my EDC. I was torn between a 19 and 17 Gen 4 for HD and other means. I decided to go with the 17.
Either way I would recommend not selling / trading your 26. Your 26 is great for concealing (easy to use on your ankle if needed). If the 19 feels good get the 19. Get a holster that can fit both the 26 and the 19. Like crossbreed super tuck (IWB). Then you don't need double the accessories.
Another plus to getting a 19 or 17 for home defense is the fact you can then add a tactical light / laser if desired down the road.
That is my two cents worth.