Vardah is a massive sucker for cheesy action or horror movies, partly because that's what she grew up on (look up the origins for movies like "Lady Terminator" that came out of Indonesia because its wild)

Fabian to no surprise likes westerns though he has a fondness for older spaghetti westers in particular, like, maybe its the film grain, maybe its the music, maybe just the general cheapness that makes everything feel a certain way but he loves them

Shizuki loves horror movies, in particular haunting/ghost stories

Alex loves anything to do with aliens be it a horror movie like, well, "Alien", action movies like "Predator", horror-comedies like "Slither" or "Grabbers", or even war movies like "Battle: LA"

Carrie likes weird obscure black and white French auteur films. Like the absolute most pretentious stuff you can imagine where the director is so high on their own ego you can feel it and yet still watches them

Tara likes anything that makes her think or demands focus so Thrillers tend to be her favorite

Scott, well, Scott also likes action movies like Vardah but in truth he likes most everything with one exception. He hates super hero movies. He hates them so much.

While she hasn't been as into it as of late due to a lack of time and blizzard being a nightmare even in-universe Shizuki is something of a major WoW-head with her going so far as cosplaying and attending panels for it

Jack loves tabletop games and in particular he has a fondness for D&D mostly because he loves DMing. Give him a chance to sit down and create for a campaign and it is where he shines and he's already got a mountain of homebrew stuff he's made.

Mal has a few romantic and post-romantic era books they have read a few times over to the point that some of the books they did had needed to be replaced because the spine of the thing simply couldn't keep being opened and closed like it was. Poor "Frankenstein" has needed to be replaced twice.

Alex's love for cryptids and aliens are probably fairly known at this point but if not the girl freaking loves them and a few conspiracy theories. The fun types like Roswell and Bigfoot not the ruin peoples lives ones like, well, most.

It depends on which part of the polycule we're talking about
Vardah and Fabian love watching movies together when they have time, usually cheesy action schlock or comedies, or Vardah backseat games while Fabian plays
Vardah and Shizuki do a lot of craft projects together, some being practical things around the house like building furniture together out of scrap, like how their living room table is a modified copper wire spool or things like Shizuki's cosplays or reading together
Parah and Vardah argue about politics a lot but when they aren't doing that they enjoy cooking together
And Shizuki and Parah have fun with things like hitting up places like arcades or urban exploration points though for different reasons with Parah liking exploring free and open places while Shizuki likes haunted places
All together they probably enjoy a good movie or game night though with the former it probably takes a ton of time to decide on a genre.