Looking for a IT provider to rent 6 laptops

People In, in Avignon is looking for an IT provider. The organisation wants to rent 6 laptops for its employees.
For practical reasons, People In does not want to work with Apple-branded computers. People In wants one of the computers to be more powerful than the others so that the company’s IT developer can fully develop his skills.
The company wants to lease over the long term. The exact duration will be defined between the company and the supplier.