WD can deteriorate the bushings. Use quality grease. Looks like you just have a good case of worn out bushings and isolators. It's time to just throw some new sway bar bushings, and possibly ball joints. However those generally can only be determined by actual playing with them with the car right there in front of you. If its either:
Spring isolator, pretty common.
Strut bushings, also very common, however most of the forum chunks those for sake of CC plates.
Could even possibly be the ball joint on its way out.
The one thing you can do is go through and grease the hell out of all of the joints. Just do one particular bushing set, then see if you can replicate the sound, if you do, then you know thats not it. Good luck.