I think currently the pixels are a great choice, to be compatible with #GrapheneOS, which should be the most privacy oriented OS without question.

I opted for a Pixel of the a series. Is with little lower spec. I think mostly for the camera sensors.

Or when repairability is a high need, the Fairphone could be cool. It is an all modular phone where it is doable for everyone to replace down to the camera and displays without much skill or tools. 😉