Diagnosing this sound - rear wheel bearing?

[bradleyheathhays]

96 XJ here. A sound is coming from my driver side rear wheel area that started as what sounded like maybe a rock in the tread, small repeating tick the same frequency as wheel rotation, and now has developed into a more aggressive rubbing sound. Suspecting a bad bearing, I did the hard left turn right turn test while going down a wide straight road but didn't hear anything definitive. What I have noticed, though, is that the sound doesn't happen at all when I'm accelerating even a little, but only happens when I'm coasting and braking. I was able to diagnose it as definitely coming from my driver's side rear when I had my buddy drive and I stuck my head out each of the back side windows.

Is there any part other than a wheel bearing that makes this kind of sound when it goes bad? Because something is definitely going bad.