Car shakes when turning slightly to the right

SOURCE: steering pull and tire wear

If professional alignment does not straighten out alignment & tire wear, you can "tinker" with the settings to straighten it out. Caster is pre-set & non adjustable. You did not mention toe-in.(which more often causes wear. If the steering wheel is not horizontal it shows a possible toe-in problem, as can wandering. What condition are the tie rod ends and ball joints? Be sure everything is tight before doing anything else. If you make any changes, make small ones, write everything down and use good reference marks that will not wear off. Once a small change is made, drive for a while & check tire wear often.
You are correct in persuing this matter, but If you did not buy the car new, even a minor previous accident could throw the body out of whack enough to give problems like you are having.

SOURCE: shaking in the front end

Have the brake discs checked, as they may need to be machined or replaced.Also have them check the idler arm and tie rod ends.

SOURCE: the vibration in my front end is really more like

sounds like a wheel bearing problem

SOURCE: I have a 2006 Tacoma. When driving and turning

Check your suspension in the front for worn or damaged parts to include upper A frame retaining bolts, especially if you've been four wheeling. This is most likely a ball joint or Tie rod or connecting rod issue. The only other location to look would be the CV joint. In most cases you would hear a clicking sound when your are turning and driving, if it have front or 4 wheel drive.

SOURCE: when turning the wheel slightly left or right the

I would think that you may have a problem with a cv axle. Usually a bearing will make a roaring noise all the time while going down the road. Jack the car up on the right side and see if the rubber boot on the axle is seperated. if so you need to replace that axle. Hope this helps leave comment.