Sony Xperia models have been my choice since the Sony Ericsson days. Unlockable bootloader, LineageOS available, microsd card, headphone jack, good screen, decent camera, reasonably powerful SoC, water/dust resistant, and probably several other benefits that I'm forgetting at the moment.

I don't know if any US carrier offers them, but last time I was shopping, models with North American radios could be bought online.

My main complaints about Xperia phones:

- They don't support re-locking the bootloader at all, let alone with custom keys. This could be problematic for folks who depend on mobile banking apps that require full Google Play Integrity (SafetyNet) attestation, or risky for folks who leave their phone unattended around potential adversaries. To be fair, almost all smartphones have this problem.

- Their wonderful Xperia Compact line, comprising smaller versions of their flagship phones, seems to have been abandoned. Even their most recent "compact" models were bulky compared to their predecessors.