Probably warped brake rotors. They can be taken off and machined true or just replace with new rotors.
A bad tire with belt separation. Loose/worn steering joints. Bent rim. A warped rotor (if wobble happens while braking only).
I woulld be suspicious of a tire problem such as a shifted belt.
warped rotor
not usually. warped rotors will cause a vibration during braking.
replace front brake rotors and pads.
worn front end bushings, the death wobble usually needs track bar bushings but I recommend replacing them all with nylon when you do it.
get your tires checked
Warped rotors
wobble gives an indication of a front end problem. Check the lug nuts to insure one has not come loose. With the front end on jack stands, shake the wheels to see if they move. Do the same with the tie rod ends and bushings. This will show you which components have worn out.
realignment, 60 to 80 bucks
Get you front end aligned, that should take care of the shakes.
could need a tire balancing. Also check the tires to see if you dont have a bubble on one of them