I know that Graphene OS is the best OS for privacy/security on a Pixel, but I have both a non-Pixel phone. What is the second best ROM in this case? I know that Lineage still has some Google telemetry since it’s meant to be as close to AOSP as possible and not actually de-Googled. Maybe /e/ OS then?
In the small chance you have a Fairphone, then CalyxOS is pretty nice, but does ship with some proprietary Google bits enabled, like with regards to eSIMs. By default this is disabled on GrapheneOS.