I love the Zenfone and have had nothing but good dealings with ASUS. I would have gotten a Zenfone 11 U as my next phone but headphone jack on the bottom is a dealbreaker.
I'm not sure I would recommend Xiaomi. It is possible to unlock the bootloader but is a massive pain with lots and lots of waiting.
No idea about OnePlus. I've heard their good; never looked into it.
I wouldn't recomend the Nothing Phone, especially if you're worried about carrying another dongle. You could always get usb-c earbuds/headphones.
You could also wait for the new Sony Xperia 5 VI. Headphone jack, similar size (as far as we know) and years of updates. No idea how Sony is with he headphone jack.
Moondrop is also coming out with a phone but there hasn't been much info about it.