WHEN TURNING THE STEERING WHEEL IT VIRBRATES

i would say it is a solenoid or air in the power steering lines but you would have to put a obd2 scanner and see what it says.
if i remember correct bleeding is as simple as removing the power steering cap and turning steering all the way left hold for 5 seconds then right and hold but you will need to look at oil in reservoir and see if it is bubbling while turning and holding. you will need a helper and if it is do this for 5-10 minutes.

Go check your power steering fluid level and watch belt turn at idle to see if it is tight and turning smoothly.Pulley could be giving resistance.mAYBE BAD POWER STEERING PUMP OR LEAK.

Check your fluid level and belt for tension and adjust or replaced as needed.

I'm going to agree with the rack conclusion. Keep in mind I can't see it for myself.
If you take the load off the front wheels, you should be able to turn the steering wheel without effort.
If the effort changes while turning the wheel, the only things affected would be the rack and the column.
If you notice it turns ok with the engine off but not with the engine running, it could be something with the pump or one of the lines, or still something with the rack.

The vibration and rubbing may be separate issues. There could be many causes for vibration, ranging from low fluid, sticky rack valves, etc., to the tires simply grapping and releasing on the pavement. If it only does it under heavy use, such as when standing still and turning alot, then I suggest not doing that. It is hard on a car to turn the steering wheel when the car is not moving.

no try brining the revs up a bit the load is to high for the pump if the revs come up the pressure comes up to it will make it easier to turn hope this helps

Take it to the Dealership have them check it.

Possible causes worn brake pads and/or rotors, worn wheel bearing,or power steering pump going out. can't exactly say,without more info.

sounds like tie rod ends with the shaking.check struts and sway bar links on the snapping. hope this helps you.

if it vibrates and idles rough when you turn the steering wheel at very low speed your power steering pump is going out