I would definitely check your control arms for worn balljoints and bushings especially the upper control arms. I was experiencing something similar and felt something moving around up top around struts every time I hit a bump. Come to find out, I had a worn bushing in the upper control arm which caused stress on the pivot shafts which eventually broke through the body in the engine bay. Not a good look or feel. I had to get it welded. I hope this is not the case with you.

Try bouncing the front suspension a bit by pressing on the fenders around the strut area to imitate a bump. See if you can pinpoint the noise this way first. If you cant hear anything then thoroughly check each balljoint and bushing.