2021 Toyota 4Runner Steering

I have a Toyota 4runner 2021. I'm actually presenting steering wheel shake and a feeling of unstable suspension issues in the front end during highway speeds more than 60 MPH. I when to the dealership and they align and balance the tires. But problem still happens. They said that not problem has been found when they verified the vehicle but they noticed the issue.

Between 58-65mpg steering whee shakes. Vehicle has been back to dealer for rebalancing the tires twice and a front end alignment. The issue persists.

The steering wheel will shimmy between 50-61mph. Just under 60mph is when it's most apparent. Worse on a cold morning when beginning commute. Can vary from slight vibration felt in the hand to visibly shaking. Can also be felt on the vehicle floor and seats when at its worst.

I purchased a 2021 sr5 premium and on the 2nd day I noticed that after driving at 60-63 the car shakes and pulls to the right, I've took it back to the dealership, and the problem still there. They said that is normal but after reading on forums alot of people are experiencing the same problem. Will take it back to have check out again.