Nothing is unfixable.

Were the car mine I would begin by raising the front wheels safely off the floor and performing the four P's (push, pull, pry and prod) on all joints and suspension members. That costs nothing. If I find something loose I replace it.

If the suspension is found to be tight, the next thing I do is go to www.gsp9700.com to find the nearest shop with a Hunter GSP9700 wheel analysis machine. This is more than a wheel balancer. It has a pressure roller that looks for Road Force Variation(RFV.) This is a fancy term for stiff spots in the tire. One of these computerized tire and wheel analysis can confirm or deny that the problem is wheel/tire related, and in some cases balance the tire to compensate for it.

Another thing would be if you have a buddy with a similar car that you could take all the tires and wheels off of, mount them on your car temporarily and go for a ride.

All this said, in the vast majority of cases such issues are wheel/tire related, but until we get some more details, we can't do much more for you.