E-car financing

Hi you, I would like to ask you as experts about cars. And I would like to finance an e-car after the end of my lease in the autumn. I have not yet specialized on the model, however it should be a solid model of the lower to middle price class with a range of approx. 250-300km (e.g. Opel Corsa-E). A Tesla Model 3 Standard Range would be a dream, however, they currently have quite a delivery problem… a real question. There are felt to be endless possibilities over which one can run the financing: manufacturer bank, dealer, house bank, internet credit, etc. It is important to me that it runs uncomplicated, without a deposit and you do not need an indefinite work contract or the like (I don’t know if this is at all common with a car loan) A closing rate may be a pleasure, since so the rates become significantly cheaper, which is also my goal. I’m sorry that it might sound a little unprofessional, but these are my circumstances… Thank you in advance!