It looks like you can get a used Pixel 3a for ~$100: https://www.ebay.com/sch/i.html?_nkw=pixel+3a&_sacat=0&LH_TitleDesc=0&LH_ItemCondition=3000&rt=nc&Lock%2520

It looks like you can get a used Pixel 3a for ~$100: https://www.ebay.com/sch/i.html?_nkw=pixel+3a&_sacat=0&LH_TitleDesc=0&LH_ItemCondition=3000&rt=nc&Lock%2520Status=Network%2520Unlocked%7CFactory%2520Unlocked&_dcat=9355 https://www.ebay.com/sch/i.html?_nkw=pixel+3a&_sacat=0&LH_Ti... (this is US ebay, but I assume prices are similar) I think Calyx still supports Pixel 2, but you've got to trade off the likely length of continuing support against price, of course.