I have had several Pixel phones with GrapheneOS on them.
However, I, like you, don’t get on well with Pixel’s and have a preference to older Samsung phones, my latest being a Galaxy S10 running LineageOS.
I find the LineageOS/Samsung combination totally fine for my needs, which are avoiding having active accounts with Google, Apple, Meta, etc., etc.
I simply don’t have the threat model to require GrapheneOS.