

https://phonedb.net/ has a database of smartphones that you can filter by various criteria. Among these are height and width.
Searching for smartphones released in 2023 or later with a maximum width of 68mm and a maximum height of 145mm yields only Asus Zenphone 10 variants, which you’ve already said that you have ruled out. I’d add that I personally am not a fan of Asus’s “years of support” number — if they’d crank that up, some of their (larger) phones would go to the top of my list. That may or may not matter for you.
If you go up to a height of 75mm, the Samsung Galaxy S23 enters the picture. That has a 5.9" screen. I haven’t used it, so can’t personally recommend it.
EDIT: Another option might be going at this from a different way. If the issue is that your hand is too small to wrap around the thing comfortably, might be options to add a different grip.
kagis
Looks like there are some people who make gizmos aimed at this, changing how the phone is held:
You’re probably using a more-technically-correct use of “mania” than the person who coined the term.