I like the feeling of holding and using a phone in one hand. I am using a Pixel 5 right now, but it feels a bit too large for me. I know nobody makes phone that small like the iPhone 4S or the Samsung S3 mini anymore, but is there at least a phone smaller than the Pixel 5? Maybe around the size of a iPhone 12/13 mini?
EDIT: There is a small Android phone project in development for anyone interested: https://smallandroidphone.com/
Here is a tip for the selfie camera, you can set it up so that it will take a Pic if you hold out your hand like a wave(it will do a count down so you will know). Done that multiple times when I can’t click because of different reasons. Otherwise I usually just take pics with the side button instead of the on screen button (s21)