None,
A good composition of the right shots in sequence doesn’t need effects. Professionally effects are only used in those situations where there isn’t another option. Or they are used on purpose, but these are the more obvious and extremely present ones made by digital artists.
I’d say, find the right shots that fit tight and edit them to the pace of the music.
little trade secret: Often reporters shoot a short reel of “yes”, “no”, “please continue” and followup questions. at the same background where they just held an interview. So they can put that camera shot in between the actual interview. (they only carry one camera)