EV cars market study -- 3

I need a market study of electric vehicles, both pure car play dealers (Toyota, Mercedes, BMW...) and pure electric (Tesla, BYD...)
My goal is to start selling electric cars but I want to know which are the best options
I want the:
- availability
- Specs
- Prices
- Charging stations
- Range
- I need datasheets alongside deep details
Do research on electric cars. Tricks, what to buy…