moxplod

Hi, new to e350 and this forum. I am looking to put new wheels on my 2011 e350 coupe. From what i have read in the forums i should get 19" as i drive a lot in the city with potholes etc and i dont want to lower the car ( correct me if i am wrong as i would love to go with 20" ! )

What tire size should i get with the 19" so the gap (between the tires and the car) is the minimum with no rubbing.

Thanks!