The official list can be found here:

https://support.google.com/googleplay/answer/1727131

We either need a way to periodically import it all into our app (might end up taking a significant amount of space, as it keeps growing), or we could use a library that automatically downloads it when needed, like this one:

https://github.com/jaredrummler/AndroidDeviceNames

It gets the database from a repo in Github, so that would make every KDE Connect installation potentially ping Github. Not sure if that would be something to be concerned about.