I adore 'What We Do in the Shadows' (the tv show and the movie). It never fails to crack me up.
I'd absolutely love it if they included a DS reference at some point. Taika Waititi and Jemaine Clement are New Zealanders, so they might not have been familiar with the show when they were growing up, but I think it'd be a miss if they don't at least make some throwaway reference to the Collins family or something. lol.
The same goes for 'The Chilling Adventures of Sabrina'. We need an Angelique reference in the mix. Or better yet, bring in Lara Parker for a cameo.