Umm... yeah. That's going to be a tall order. The stock 18" do not fit the M3P due to the brakes and the aftermarket wheels don't take the aero covers.
Let me see if I can find something.
EDIT:
Found something for you.
The EV01+ Wheels Designed for Tesla Model 3 by Fast Wheels in Canada. Created to not only look amazing on your Tesla but they are lighter than factory Tesla rims as well as more aerodynamic. Increase range with Fast Wheels EV01 and set your Tesla Model 3 apart from the rest.
www.aftermarketev.com