Thank you for writing something for me. With the exception of the do-not-like stuff, please take any and all of this as optional suggestions only, and do what works for you. Not all of the stuff I like, for instance, may be applicable to all the fandoms I've requested; choose what makes sense to you.
Enjoy in particular: snappy dialogue, families of choice, playing with language(s), cuddling, work (in all definitions) and people being competent at it, scenes from everyday life.
I tend to prefer genfic, but--depending on the fandom, that is--have no objection at all to background romance/relationships, or even a slow-burn romance fic with a high gen ratio, as it were. Any pairing you want to throw in (m/f, m/m, f/f, threesome, you name it) is fine as long as you can make me believe in it.
By fandom (characters), in no particular order:
Archer's Goon (Erskine, Torquil, Hathaway)
I'm sorry to be so unhelpful, but I honestly have no idea what you could do with these characters; just that anything in which they appear should be fun to read. (Torquil doing music? Erskine's travel book? Oooh. Hathaway beta-reading Erskine's book for him, with snarky side comments from Torquil? OOOH. Maybe I had some ideas after all--but don't feel bound by them if you have ones you like better.) Go to town.
Echo Company (any)
Realistic or not, I'd like to see Rebecca and the others doing well in the future--finding happy lives for themselves, I guess. Maybe epistolary fic, or a meeting at the Wall, or...? What does Maggie Doyle look like through her boyfriend Richard's eyes? How does Walter Hanson put his life back together? (I imagine him ending up as a teacher or a coach or some job with kids, for some reason, but you have no need to stick to that.) What does Michael write to Snoopy, and vice versa--and how do they deal with race now they're back in the World? What would Rebecca's brother Doug make of Michael? And so on.
Marlows (Rowan, Miranda, Peter, Jan, Anquetil, Foley)
These books have been on my "best of" shelf for ever, and it delights me that people are writing such good fic for them. Please take the character list as "any of the above" rather than feeling the need to include all of them. I'd be happy with futurefic (or pastfic in the case of Anquetil and Foley), with a scene from canon seen from a different perspective, with an innovative way for Rowan to escape Trennels, with Peter getting to be competent at something, with Miranda and Jan (also interested in the way canon looks at Miranda's Jewishness and religion in general), with anything else you'd like to write.
Melendy Series (any)
There's an entry a few back in my LJ which describes my feelings about this series in detail; you can refer to it if necessary. Would like to read about any of them, especially Rush (even better if something musical), or something centered on Willy for a change. Futurefic would be fascinating, a missing scene etc. from canon likewise. Caveat: I would very much prefer genfic here, with romance, if any, being kept firmly in the background. Possible exception thereto: if you feel strongly about giving Willy a love life, that might be very interesting to read about, as long as it's not with any of the Melendys.
Again, please take all of this (apart from the do-not-like list) as guidelines rather than iron requirements, and write what you'd like to; I will be very happy with most anything you come up with. Many thanks.