I recommend sticking to GOS. If you’d like to use something else, I’d recommend DivestOS. CalyxOS, LineageOS, /e/OS and iodéOS are all significant downgrades in usability, privacy and security and therefore not worth using on a Pixel.
So far I think I can trust MrMobile to give an honest opinion. When it comes to his channel its not just specs and numbers but real experiences. Quite different from the myriads of other tech channels on YT today.