getting rubbing or scraping rear area of car at low speeds
Were the tires recently replaced?
If the answer is “yes”, then it is likely that a non-stock tire size was installed, and you need to return to the tire shop.
If the answer is “no”, then I think that you have no alternative to taking the car to a qualified mechanic for his evaluation.
Some cars (or maybe all of them these days) use plastic wheel-well liners to help deter rust. If one of those came loose it could rub on the wheel. Especially if the car has been damaged in a fender bender before.
When is the last time anyone has checked your rear brakes?