For a potential USA-only solution, (I don't know if it will fit or be usable for your use case) the USDA provides aerial imagery under the "National Agricultural Imagery Program." [1]
[1]: https://www.fsa.usda.gov/Assets/USDA-FSA-Public/usdafiles/AP...
Re:New Map APIs from Google
by lelandbatey on Wednesday August 30, 2023 @01:06PM
(#37325288)
If you're willing to pay for it, a company I worked for switched from Google Maps to TomTom maps, and TomTom does offer aerial image maps. I don't remember the specifics of exactly how much cheaper TomTom was vs Google Maps, but I remember it being on the order of an 80% discount.
[0] https://maplibre.org/