If I understand you correctly, what you are looking for has a lot to do with editing. The rapid transitions in commercials or music video have a lot to do with how the clips are cut to link motion with sound and color. Rhythm, sound fx and matching motion are used to cut in between shots and tell a story in a few frames. Of course there are some VFX- most times camera shakes, lens flares, flashes of light, color grading and roto. All pretty basic effects, but used in an inventive way to accentuate the “feeling” of the cut. If that’s what you’re after, my advice is to do a lot of frame by frame analysis of the works you like and then try to decompose what’s in there and reconstruct it in AE yourself.
Tudor “Ted” Jelescu
Senior VFX Artist