Which car brand is best suited for a company fleet solution?

Which car brand is best suited for a company fleet solution? Hello everyone. I am currently building a company that will provide services in the B2B sector in Germany with a large number of branches. As employees will have to be on the road for the most diverse reasons, this future company needs a large number of vehicles (about 100 to 150 vehicles in the first three financial years). – On the one hand, the costs, it should work in leasing, best with all costs. – On the other hand, it should not be the easiest vehicles, a certain level should already be taken into account. – The vehicles should withstand the practical use in quality and reliability. – Several vehicle classes should be offered, from small car, limousine, SUW, to minibus… – All vehicles should have a certain minimum equipment, Navi, climate etc.. Manufacturers think that they have the best offer, but the individual vehicles the offers are difficult to compare with each other. Of course, all vehicles should then be taken only by one manufacturer, as this will then also become the identification mark of the company.What do you do best now? Which brand is to be recommended? Who has experience with fleet decisions? Many thanks to everyone, and many greetings….