[greentea23]

Lineageos maintains a list and you can filter for devices with official bootloader unlock https://wiki.lineageos.org/devices/. Buy only these devices to signal to these companies that this matters.

Noteably OnePlus 13 and Pixel 9a, both 2025 phones, can be unlocked.

[pzo]

If someone want something also quite recent and cheaper in this supported list there is also motorola edge+ (2023) with good specs. I got myself refurbished with perfect condition for just 240usd.