These are the three best models I can find at that price point, and I'm inclined to throw behind the Pixel 7a myself only because it'll likely get LineageOS updates past Google's official EOL date and no real loss of significant bands. Note the shortcomings of each model, none of which I'd consider dealbreakers for reception, except maybe rural Canadian coverage with the Nokia.
Nokia XR21
EOL 24 May 2027
On T-Mo, no unlicensed 5.2GHz LTE, no mm5G support.
On Telus, no unlicensed 5.2GHz LTE, no band 29 rural LTE, or n78 C-Band 5G support.
Google Pixel 7a model GWKK3
EOL May 2028, will likely have LineageOS support past EOL.
On T-Mo, no unlicensed 5.2GHz LTE, no mm5G support.
On Telus, no unlicensed 5.2GHz LTE.
Google Pixel 7a model G0DZQ
EOL May 2028, will likely have LineageOS support past EOL.
On T-Mo, no unlicensed 5.2GHz LTE, no 47GHz mm5G support.
On Telus, no unlicensed 5.2GHz LTE.