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/
When you say the Pixel 5 is too big, do you mean when you are using it, the screen is too large? Or is it too large in your pocket? If the latter, maybe consider a flip phone that folds in half like the Motorola Razr or Samsung Galaxy Flip. Unfortunately, if you are looking for smaller screens, those unfolded may not fit your criteria.
I mean the screen is just too big. I just want to be able to use a phone one-handed.