Buy a used Pixel that fits your budget. The Pixel 6 sometimes has problems with the battery so maybe rather choose between 7, 8 or 9. But you could send it to Google to get a new one but then you have to deal with them so yeah. Ifixit also has first party replacement batteries if you would choose the Pixel 6 and you would get this problem. Still I would recommend 7 lineup. Just take a look at grapheneos.org for length of support. Also 9 will be hard to find 2nd-hand I recon ;^)
It wouldn’t be American if you weren‘t able to take your tank to grocery shopping on your flatbed. Freedom baby