At about 60 mph my left front tire wobbles if I slightly turn to the left

I just put new tires on my 2013 Outback
hoping that would stop my front from
wobbling/shimming when I slightly turn my
steering wheel to the left at about 60mph or
faster. The tires didn’t solve my problem, it still
does it. What front end part would cause this?
I even had the Subaru dealer check the front
end out resulting in nothing. This was before I
bought the new tires. They checked the
balance on all four tires & said they were out
of balance. I took it to the store where I
bought the old tires to get them rebalanced. It
still didn’t make a difference.