Rear clunky noise

The best approach is to have the steering and suspension systems inspected at a tire and alignment shop. The people there are experts at finding the causes of noise, vibrations, and bad tire wear.

The best suspects are a worn anti-sway bar link or a sloppy strut, but we also see a lot of deteriorated control arm bushings. At the mileage you listed, a broken rubber exhaust hanger is another good suspect. That can let the tail pipe bang on something.