Ooh, excited for this! I love character study vids and am always impressed when people turn their attention to a less-focused-on character. I think most of the recs I have might be not quite minor enough, but here are a few vids I have liked:

Get Me Bodied by anoel (The Fifth Element, Ruby Rhod)
A Bad Dream by sdwolfpup (Hard Core Logo, John Oxenberger the bass player)
Home by seekingferret (Space Sweepers, Bubs)
Learn to Let Go by BeatriceEagle (TNG, Ro Laren)
Landsailor by skygiants (A:tLA, Jinora)
Sway by cosmic_llin (Huge, Alistair) (who is almost definitely too big a part of the ensemble but this vid is so lovely)