I am sorry, but the URLs provided (traveltofly.ru and redmeh.ru) do not seem to contain the information you are looking for about the best cities in Spain for digital nomads. The content of redmeh.ru appears to be about industrial and manufacturing topics. Example.com is a placeholder domain and does not offer specific travel information.
If you can provide the correct URLs that discuss Spanish cities for digital nomads, I would be happy to help you find the information.