Vibration could be anything, wheel balance, bearing, brakes. Wheel balance is as good a place to start - relatively inexpensive. Bearings usually have constant drone from 40mph up and really bad ones will have a wobble. Brakes, then sticky caliper will force contact with disc. You can usually smell. Drive for 10-15 minutes and coast to a stop. Brakes may be warm, but definitely not hot. If all that checks out, the only other thing is suspension arms. You'll normally feel a clunk over uneven road surfaces. If car has auto lights - it may be ambient light sensor. VCDS might mick this up in a scan.