Front Rubbing - Tires, Suspension or Wheels?

My car was damaged while in the shop over the summer so I wasn't able to drive the car until recently. Turns out, my tires rub in the back.



I suppose I need some kind of spacer, but I'm not sure how thick and where to look. What should I be looking for; I've never used spacers before and I want to make sure I get something that's safe.