There are also third party device finders but use those at your own risk. Additionally you can also port a new device to Lineage OS if you are knowledgeable and motivated. Most phone manufacturers allow boot loader unlocks but a few don’t so be mindful.
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You don’t want root as that breaks Android completely. It isn’t designed in a way that root is necessarily and it breaks the isolation.
What you probably want is a device supported by Lineage OS.
https://wiki.lineageos.org/devices/
There are also third party device finders but use those at your own risk. Additionally you can also port a new device to Lineage OS if you are knowledgeable and motivated. Most phone manufacturers allow boot loader unlocks but a few don’t so be mindful.