My honda accord has a vibration, pretty fierce over 60 m/h?

It have weel balance and alinment. What i do to correct it.

Get a competent suspension guy to test drive it, could be bad joint rubbers, steering damper or something bent the alignment guy missed.

We once had a car that only vibrated at one speed, after hundreds of miles we found that speeding past it, like going 70, lost the vibration.

Muffler maybe?

You will need to go to a mechanic. Alignment and wheel balancing would have caught all of the easy things; which means your problem is something more complicated. It may be that the constant velocity (CV) joints in your axles are going bad; or it may be something more extreme.