If your dad did the alignment, I gotta ask his level of experience.

Did he check for loose stuff? My first thought about your vibration is loose ball joints, or loose bushings somewhere in the suspension.

 

double chk the balancing make sure that it is as close to zero weight needed as possible use a machine that has a FINE mode , switch frt tires to rear and test drive ,,if shaking is gone you found the problem

if shaking is still there, like Jim says, inspect the frt suspension for loose or worn components

ball joints, inner+ outer tie rod , upper contor arms, etc etc..