So.... I had the same issue. Took it to Discount Tire to check the balance. The guy told me that Toyotas have this complaint all the time with the 10 ply tires. They rebalanced (for free even) and it has helped noticeably. There is still a slight vibration but more more tolerable. They use the roadforce balancer at that shop.
Here's a link to help you find a shop that has the proper balancer.
https://www.hunter.com/find-equipment/?