You can compare prices and rent a car through Rentalcars.com car booking service. It is one of the world’s largest car rental companies. Please note that Rentalcars doesn’t rent cars itself, but finds the best offers from various rental companies: Herts, Avis, Europcar, Alamo, Budget, National, Dollar, Trifty, etc.
There is no need to visit the websites of rental companies, because you can get all the offers at once. The system allows you to compare prices, choose a company and book a suitable car model by paying with a credit card. When booking, prices are often lower than in the case of a direct car rental from a supplier.