I am really happy with my Asus Zenphone 9. The best feature is the long battery life. If i wanted i could use the phone for ~72h, though I usually charge it to 80% and charge the phone every 2 days instead.
The Battery Life was my main buying point, the aux and smaller size were important though too.
It also has an actual gimble for camera stabilisation in the lense instead of the typical stabilization through a sensor, though i guess it is more of a gimmick. I myself don't take that many action shots where this could be useful, so I can't really give any info if it is better than the usual way of stabilization.
Since it is an Asus phone I think it also is pretty powerful and power efficient for mobile gaming if that interests you (I don't care about that).
End of this Month they will also reveal the Zenphone 10, so maybe this might also be a possible phone to check out. I bought mine also directly release last year since I was looking for a new phone around that time. It was bundled with a chromebook that I was able to resell so it was a nice deal in comparison to other comparable phones.
I would've gotten a Zenfone 9 if not for the fact that it only gets 2 years of updates. This planned obsolesence is unacceptable, especially for an 800 dollar phone.
Do you happen to know if the zenphone 10 will have full band support for American T-Mobile service? I considered zenphones before but the lack of full T-Mobile spectrum compatibility and apparent motherboard issues turned me away.