Shimmy and pulling

Im a single mom with a 99 Grand Caravan Sport,with 104K miles.
Just had my year old tires,rebalanced and rotated,but I still have a shimmy.And now its pulling to the right.
Where do i begin to find the problem?
Brakes/rotors?
wheel bearing?
Front end?
I know that one of my shock towers is bad,could that cause this?
Dont have alot of money so how should I begin to figure this out?

Thanks!

Have your struts checked... 100,000 miles is about what you can expect to get out of the stock units that were installed when your vehicle was built. Also, there are tie rods connected to the struts that also need to be checked... one of mine broke at about 180,000, but everyone's situation may be different.

P.S. - yes, a bad shock tower *absolutely could* and probably should cause the problem you describe.

What kind of shop would check these?

An alignement shop or just a general ?

Hate going to dealers.....