Six minutes is too short to have a complete plot. It is better to choose some of the more famous musical clips to perform. My personal suggestion is to choose one day more from "Les Misérables". Jean Valjean, Javert, Marius, Cosette, Eponine, Enjolras, and the Thenardiers, exactly 8 people. This duet is a classic, and if performed well, can also be a good interpretation of the plot and everyone's inner thoughts. The officially photographed versions online are mostly in the form of a concert. You can design the props and moves yourself, and you can find inspiration in the movie version and some candidly shot stage boards with moves.