You can do the tie rod , can b a pain to break free but it is a simple enough task to get it close. Take an accurate measurement, disassemble and then reassemble to the same measurements. It will be good enough to get you to an alignment appointment .
check your wheel bearings and calipers to make sure you don't have a stuck piston.
you want to jack the front end up to get the weight off, grab all of your joints and check for play.
It really sounds like breaks though, if it was simple geometry and you would feel it increase in frequency with speed. It would be noticeable on a rougher surface.