^ jack the relevant corner up, and try rocking the wheel whilst grasping it at the 9-3 and 12-6 o'clock positions. also spin the wheel to see if you can see/hear anything untoward
tbh, if it's the wheel bearing, it should be obvious if it's as noisy as you describe. if it is the bearing, i wouldn't use the car at all until it's fixed
having said all that, it could easily just be something that's loose and catching something as you turn the wheel - stick a stand under it whilst you've got it jacked up and have a good look - hopefully something simple