I ended up getting a 'regular' sized samsung only slightly larger than the one it's replacing, but at least modern phones seem to be getting longer software support periods (assuming there's no nasty surprises included).
I think they no longer do that since a while (a few years) ago, but don't ask me which phone model exactly was the last one affected.
Just updated to Pixel 8 and it fits the hand very well (including Spigen Liquid Air cover), and doesn't feel too heavy. Have a few friends who got Pixel 8 last month on sale as well and they all confirm.
Maybe from Google phones, for now? Possibly on smaller phones. But Best Buy sells 7 models with 5g and a headphone jack. There's almost certainly more if you shop a retailer with more variety, using Best Buy because they have decent filtering.
https://www.bestbuy.com/site/searchpage.jsp?_dyncharset=UTF-...
Unfortunately, unlockable bootloader isn't one of the parameters available, and I consider it essential.