I saw this elsewhere and thought it was a great idea. These are rare fandoms and characters/pairings I'm interested in, so if anyone has a great yen to write something along these lines, any of these would make me jump up and down and squee.

This list will be edited according to whim.

The Good, The Bad & The Weird
I adore Bad. Anything about his backstory would be wonderful, and as it's hinted that Good and Bad have come across one another before, something exploring their previous run-ins would be completely awesome.

Ouchou Haru no Yoi no Romance
Yes, technicaly it's shota and that's eww. I don't particularly like Senjumaru but I do like Fujiwara no Moroe's good-hearted, heroic nature - but my favourite character is Ariwara no Narihira, the beautiful, sarcastic, meddling, amoral voluptuary who's soft as marshmallow inside. Narihira is sexy as hell and a far better bed-partner for Moroe than Senju. This is the Heian period - serial shagging was rife. Narihira deserves some action, either with Moroe (AU is totally fine) or with an OC. Hell, I'd even go for Seimei/Narihira for the ultimate in cracky crossovers.

Three Kingdoms/Red Cliff
Zhuge Liang, preferably with Zhou Yu, Sun Quan or Jiang Wei. If Takeshi n’ Tony aren’t your bag in terms of avatars, there’s always the upcoming mainland TV series which is just swarming with hot guys. From the movie version I’d most like something exploring Zhou Yu’s line “His music tells me he needs a friend” after the qin scene.

Laura Joh Rowland – Sano Ichiro series
Yanagisawa/Hoshina or Yanagisawa and one of his Noh actors, or just Yanagisawa on his own. See my Dear Yuletide Santa letter for details.

Barbara Nadel - Çetin Ikmen series
Mehmet Süleyman is gorgeous, aristocratic and deeply flawed. Even more so now that Nadel has completely lost the plot with this series. Anything set before The Dance of Death would be good. Although I loved the slashy undertones in that book between Mehmet and Mürsel, it was developed very badly in A Passion for Killing and kind of ruined the whole thing for me. I prefer Mehmet earlier in the series, especially his relationship with Ayşe, and his affair with the Russian prostitute when he was struggling to get back together with Zelfa. Anything about his Ottoman history would be a bonus.

Susannah Gregory – The Matthew Bartholomew Chronicles
Another long-running detective series that’s gone off the boil, especially as far as Matt is concerned. I’d like to see him lose the wimpiness and do something decisive for once, preferably regarding his totally non-existent love life (the last satisfactory fling he had was with the gypsy girl – the whole Mathilde thing is boring and ill-contrived), albeit it in an IC manner. Brother Michael is my favourite character, and the other thing I like about the series is the proliferation of frankly barking minor characters who wander around the college spouting ecclesiastical and secular nonsense, so anything that includes academic nutters is bound to please.

Matsunaga Kuuya – Tokaido Hisame/Tokaido Kagerou
I love this manga so much; it’s absolutely adorable. I haven’t found any fic for this anywhere o_O so... Itsuki/Hibiki would be hot, fuelled by jealousy; Itsuki and one of his many women, while he thinks of Hisame; and at the risk of resolving all that lovely UST, Itsuki/Hisame, because you just know that one day, Hisame will give in...

Spooks
Lucas North gen fic. His relationship with his Elizaveta, his time in Russia, his thoughts when he returned to Moscow for the Sugarhorse operation... there’s lots to explore here. As ever with Lucas, the shirt is optional.

Or Lucas /Alec Trevelyan (GoldenEye). Because this pairing would be awesome.

Lust, Caution
Tony’s Mr Yee is a blank canvas imbued with a depth of character. I’d love to see some backstory – why did he become a collaborator? His morals are both fluid and immovable – something on the nature of fidelity, betrayal and treason would be worthwhile exploring, I think. Is Chia Chi/Mak Mak his first indiscretion or has he had other women before? His sensual nature is very clearly defined, but how/where/when did it develop?

Apparitions
Father Jacob has a past, but what’s in it? We’re never told in the show except for the remark that he’s not a virgin. Jacob has an immense capacity for forgiveness and he’s rarely shocked (though often appalled) by what the demons do to him and those around him. Why is his faith so deep? When and how did he become a priest? Endless fodder here for fics.

Also, now the series has finished with a rather ham-fisted set-up for series 2 – and as it’s unlikely to get a second season – there’s lots of possibilities for continuing the plotlines.

Boston Legal
While I adore Denny and Alan, the character who always intrigues me is Shirley. Powerful, dynamic, decisive and a heartbreaker, her past is littered with guys she’s left but who still carry a torch for her. I’d like to read about her backstory. What shaped her personality and does she have any regrets (apart from Jack)? I especially liked the episode where Alan rescued her underage nude modelling photos from the artist’s widow – it would be interesting to see Alan’s private meditations (rather than his public-to-Denny bluster) on his feelings for Shirley.

F1
Michael/Mika, Ayrton/Gerhard, Heinz/Eddie, Ralf/JPM... anything old skool. I’d love to see something about Mika’s weeping fit at Monza in 1999; the media were terribly unfair to him for this uncharacteristic display of emotion.

Celebrity chefs
Marcus Wareing/Gordon Ramsay. Yes, I know, I know. I’m not a fan of Gordon Ramsay but the fact that he trained Marcus Wareing (who I find kinda hot) makes me wonder at the dynamics between them. Also, I have a thing for food in fic. I don’t mean chocolate-mousse-in-bed kind of food but just... its social meaning, the art of it, the symbolism of it. So a fic about two chefs would make me happy, especially if it had a recipe or two tucked inside it.