Home chargers.

I will probably be ordering a Tesla model three in the next few days. You can order a charger along with the car. However, I have worked on mine, and Amazon sells them as well. They also sell a generic charger that says it will charge a Tesla and they seem to be substantially cheaper. What would you recommend. I am getting together with an electrician to talk about it. Does anybody have any idea of the type of wiring necessary? thank you.