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/
The Galaxy S21/22/23 is slightly larger than the OP’s Pixel 5 however. The Zenphone 9 might be a good option as it’s around 2mm narrower - not a lot but it’d be noticeable for one handed usage.