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?
Zenfones are expensive AF. Zenfone 9 for example will not get Android 15. So very pricey and bad support. Also if you are into accessories than again, avoid Asus.
Options are iPhone minis (not Android lol), S22/S23 and pixel 7a (which is larger than the Pixel 5).