Hello author person! I'm really easy to please and I hope that you'll enjoy whatever you end up writing. I've written some general likes/dislikes and some specific prompts below, but don't feel as if you have to follow them (except the squicks obvs haha). Go wherever the muses take you.
integration of Jack Harkness (Torchwood) or Helen Magnus (Sanctuary) into every and all fanfic worlds and shipping them with everyone
happy people
loving, kind families
older women & cross generational friendships
queer positive spaces & futures
left wing politics and discussions of politics
enjoying the outdoors
nerd culture
traditionally female spaces/activities being valued and passed-on through generations
snow
warm beverages
feminism
race
Canadian stuff
friends teasing each other and having fun
General Dislikes [under cut] - noncon/dubcon, sexual violence of any kind - incest - infidelity - misogyny/racism/homophobia/transphobia/ableism/etc - unless these are themes you're actively discussing/working with in your fic, then that is alright. - bloodplay (unless character is a vampire), scat, bodily fluids not normally associated with sex being used in sex, hard BDSM - selfharm/suicide
I also feel I should mention that even though this is a MM fest, I *adore* female characters (and characters of the entire gender fluid spectrum) so please do not erase/degrade/etc any women in favour of the MM pairing. :)
Crossovers
Jack Harkness (Torchwood)/James Watson (Sanctuary) I ship Jack with everyone (not even kidding), and Torchwood/Sanctuary is one of my favourite crossovers. The possibilities are endless for these two! When did they meet? How did they meet? Do they keep meeting? I'd like to think they met during WW2, working for Churchill and saving the world. And then Jack flitters in and out of time, so maybe they only see each other every few decades, but Jack makes a point of stopping by. Maybe Torchwood Cardiff is one of the Sanctuary locations, they set them up in tandem with one another? How do they evolve as friends - cause I imagine they'd be friends. I do ship Jack/Ianto (OTP actually, so I would prefer no infidelity there, but pre-Ianto or some poly stuff works for me too). I also ship James/Declan, James/Helen, and James/Helen/John but I'm super fluid on all that. So if you want to dive into the muddy world that is these people's love lives, then by all means, go for it. Jack/Helen is something I ship pretty heavy too so if you wanted to do some threeway orgy stuff, I'm there. :P
James Watson (Sanctuary)/Rupert Giles (Buffy the Vampire Slayer) I love thinking about them being all nerdy together, talking literature, science, all things weird and wacky. You can make it a real plot if you want, maybe when Giles was in England with Willow they meet up again...or have them being in school together. I'm okay if you want to go with James being a professor or something and Rupert his grad student, or maybe James has been part of the Watcher's Council for centuries and that's how they meet. If going the age difference route, I'd prefer if Giles was 20ish at the youngest. Or maybe they write letters to each other? I do ship Giles/Ethan so you could do something there, maybe an UST type thing with James being light and Ethan being dark and something about choices. Or whatever. I dunno. As for other ships, I ship James/Helen/John (any iteration) and James/Declan. But I'm not OTP-tied to any of these so do with as you may. :)
Matt Murdoch (Daredevil (TV))/Oliver Queen (Arrow (TV)) These two have so much White Boy Angst that they just belong together. They can talk leather, vigilantism, fighting styles, Man Pain, dead father issues, how hot they are, etc. Endless topics. It's more realistic that something brings Oliver (and Team Arrow) to the Kitchen - maybe they were hunting a villain or something. And then they meet. Or maybe Matt, Foggy and Laurel went to school together or worked together? In Buffy, Faith (one of the Slayers), said that whenever she'd had a good kill or fight she was always hungry and horny after. I think that sentiment would apply to these two. Food and fucking. :) Maybe there would be a surprising sense of reverence for each other, this true sense of kinship and understanding. Love even? I dunno. I can see them as both a quickie and in a true love kinda sense. You pick, I'm good with either.
And seriously bonus points for Laurel and Karen having an awesome BFF interaction type thing.
Harry Potter
Severus Snape/Lucius Malfoy I seriously have no idea why this pairing is so small; especially considering the way HP fandom ships everything. Alas, that's what this fest is for! I shipped SS/LM immediately, picked up on the gay subtext in the books right away. I'd love anything for these two; them at school together - the issues they would have had with Snape not being a pureblood and Lucius' family's racism; Snape being better at school, their mutual lust for power and darkness. Or something during their years with Voldemort, all dark and hedonistic. Or perhaps something later in life, now that they are older (I really like older characters) and their reflections on life and each other; on how Severus went "clean", having Draco there, etc. If you want to explore something sexual between them as older men, I'm down for that too (lets pretend that L & Narcissa have an open relationship - or do some poly stuff, I'm good with that).
I see them as having a really destructive relationship, both enabling each other to be the worst version of themselves. And I love that. I'd be okay with some rough-but-consensual-violence in this pairing. I'm really attracted to Severus's lack of self-worth (like, that's what I connected with most about the character) so having that explored is an option.
Star Trek DS9
Mirror Julian/Mirror Garak AHH these two. Bashir/Garak is one of my top Trek ships and I *still* ship it after all these years. Ship it hard. So naturally I ship their mirrorverse counterparts. Cause why not eh. I like mirrorGarak's thirst for power and brutality, which complimented mirrorBashir in many ways and I think if they'd hooked up they would have been able to do some serious damage. Andrew Robinson has said that he was never super fond of the mirrorverse because in it Garak was just a bad guy and lacked any subtext, and I agree with that. I like that most of the fandom for this has added that subtext back in, so I'd love it if that was continued. Keep that one-step-ahead, wicked intelligence in the Garak we love. Which honestly, I think it's impossible to write Garak without doing that hahah.
As for prompts maybe something where one of them captures the other; maybe Bashir and the rebels capture Garak, or Bashir gets stuck on Terok Nor. And torture, discussions about literature themes, and romance happen. Or the rebels come across him after Worf has tied him up and they free him for some reason....or maybe they get a glimpse (or visit) from their realverse selves and are all confused about how happy they are. Or maybe one of them defects, and helps the other...or maybe they're stuck on a planet together and they hate each other and Bashir reluctantly agrees to patch Garak up.
I don't ship Bashir/Jadzia, but I'm okay with it being canonical in the mirrorverse. You can just ignore it if you want hahah.
Community
Dean Craig Pelton/Jeff Winger I'd love something about how Jeff learns or realizes he loves the Dean. The little things he does, or maybe he has a sexual dream/fantasy/RL reaction to one (or many) outfits the Dean wears. Or how he likes how good the Dean makes him feel; Jeff gets most of his validation from people liking his body, but maybe there's something in how the Dean is so open with his love and appreciation of him (and his body) that he just *lives* for. Or the way he says his name. Or one day Jeff deciding to turn the tables and starts like actually flirting with him and the Dean being (adorably) confused. I dunno, something sweet, sexy and romantic. Any rating is fine. Also, please be respectful of the Dean's sexual fluidity. He doesn't identify as gay, he's pan and super gender fluid which I love. Oh! or maybe the study group teams up to get them together.