You mean the ONLY device, or you mean which Pixel version? If the latter, it all depends on what you can afford, but also how many years of Google software upgrade you need.
Discussion
I’m starting from ground zero. Price is not really an issue. I just want a device that doesn’t spy on me anymore. I’ve heard good things about Graphene OS.
Ok cool so 2 things:
1. I'm using a Pixel 8 and I love it. I may get the 8 pro next year not sure yet cause it's small, and I'm sort of getting used to this not sure yet.
2. A bit of reading on the supported devices may help you: https://grapheneos.org/faq#supported-devices