Can anyone think of any songs from these bands that would be good on a wedding video?

My fiance only likes harder rock type stuff and other non typical wedding music like slipknot, Chevelle, Tool, A Perfect Circle, Muse, System of a Down, Shaman's Harvest, Avenged Sevenfold etc. I want the video to have music we both like, but I don't know too many of these songs. Any ideas what could work on the video? Our wedding is pretty non traditional and I'm really open about the music but I want the lyrics to have some relevance. Thanks