Here are some popular charging cards known for their good coverage and reasonable rates:

1. NewMotion: NewMotion is one of the largest charging card providers in Europe. They have a broad network of charging points and offer various rate plans, including subscriptions with fixed rates per charging session or per kilowatt-hour (kWh). NewMotion charging cards are accepted at many public charging points throughout Europe.
   
   

2. Plugsurfing: Plugsurfing is another well-known charging card provider with a large network of charging points in Europe. They offer a charging card that provides access to various charging networks and apply competitive rates. With the Plugsurfing charging card, you can easily charge and pay at different charging points.
   
   

3. ChargePoint: ChargePoint is a global charging network with charging points in Europe, North America, and other parts of the world. They offer a charging card that gives you access to their own charging points and those of their partners. Rates vary depending on the specific charging point, but ChargePoint generally applies reasonable rates.

It's important to note that the availability, rates, and coverage of charging cards can vary depending on your location. It may be useful to consult the websites and apps of these charging card providers, and possibly review the ratings and experiences of other users, to find the best and most cost-effective charging card for your specific needs.