Diagnosing a front end wiggle at 35mph

Quick guesses off the top of my head, if the car sits alot flat spots in tires, they work their way out after driving a few miles. Shift belt in tire, I know they are new but still possible. Bent rim,are they steel wheels? Other than that, do a front end shakedown, and check everything, even tire air pressure, Dont skip over things like actually looking at the tires because they are new etc.