GrapheneOS is the way to go imo. Calyx is a good alternative if you don't have a Pixel (especially when compared to other privacy OS or so called "privacy phones" - avoid those), but a few searches comparing the two should yield the reasoning.
Some GrapheneOS staff are a bit intense in defending the OS against myths and when measured up against CalyxOS. Might turn off some people, but putting that aside, they aren't necessarily wrong.
GrapheneOS is the way to go imo. Calyx is a good alternative if you don't have a Pixel (especially when compared to other privacy OS or so called "privacy phones" - avoid those), but a few searches comparing the two should yield the reasoning.
Some GrapheneOS staff are a bit intense in defending the OS against myths and when measured up against CalyxOS. Might turn off some people, but putting that aside, they aren't necessarily wrong.