Most of the devices are tested with LineageOS (official and some unofficial releases) as well as LineageOS for MicroG or PixelExperience when available. But you can use the OpenAndroidInstaller to install all kinds of custom Android ROMs.
A selection of different Android-based ROMs and where to find them:
- LineageOS
- /e/OS
- LineageOS for microg
- BlissRoms
- PixelExperience with build-in GApps
- or you can just search the web or the xda-developers forum for an appropriate version for your device.