Where can I find a ready-made GEO solution?

Question

Geolocation

The task is rather trivial, it would not be desirable to write a bicycle for the umpteenth time.
We need a widget with the definition of the user's city and a pop-up "Are you sure in Zhopinsk?"
In this case, it is necessary to have the coordinates of the user's position.
It is also necessary to determine the nearest city from the list by coordinates (but I think there is nothing ready here)
.
I appeal to your experience. Google api does not offer, it goes without saying, but I would like a more ready-made solution.
PS. While rummaging I found a wonderful freegeoip.net service . Apparently I'll write a widget for it and that's it.

Answer 1

If you need addresses in Russia, see https://dadata.ru/api/detect_address_by_ip/

Answer 2

https://www.maxmind.com/en/home

Answer 3

They tried a lot, everyone lags, they chose Sypex Geo, he also makes mistakes with the definition of users from the regions, but less often than the rest.