I don't mean to nitpick, Tom, but is this really your plan?

Political Animals: Please come back, show! It is like The West Wing if Aaron Sorkin/the writers had known how to write for more women than C.J. (unfortunately it is like that down to implausible thriller twist at season’s end, but you can’t have everything, and you can have Sigourney Weaver, so).

In Ascension, By Descent (14742 words) by Anonymous
Fandom: Political Animals
Rating: Teen And Up Audiences
Warning: Underage
Relationships: Thomas "T. J." Hammond/Original Male Character(s), Douglas Hammond/Original Female Character(s), Thomas "T.J." Hammond/Original Female Character(s), Douglas Hammond/Anne Ogami
Characters: Douglas Hammond, Thomas "T. J." Hammond, Bud Hammond, Elaine Barrish, Margaret Barrish, Original Female Character, Original Male Character, Mallory
Summary:

The pattern of Doug and T.J.'s lives were set even before they set foot in the White House. Somewhere along the way, things changed.

This Yuletide story does a great job of bringing backstory to the brothers’ complicated relationship. “T.J. gets it. He can be the queer son, but not the screw-up. He doesn't get to be both.”  The "underage" is not explicit; the most explicit bit is canonical.

The Mirrorverse Doppelganger Visitation (9522 words) by Anonymous
Fandom: The Middleman (TV)
Rating: Not Rated
Warning: Author Chose Not To Use Archive Warnings
Relationships: Tyler Ford/Wendy Watson, The Middleman/Lacey Thornfield
Characters: Wendy Watson, Lacey Thornfield, The Middleman, Tyler Ford
Summary:

"What a crazy, random happenstance."

Someone from the mirror universe drops in for a visit. “Friendship is Magic, Dubbie!” This fandom is the gift that keeps on giving; this story feels very much like a filmed episode.

Cartes Postales (21631 words) by Anonymous
Fandom: Blossom Culp Series - Richard Peck
Rating: Teen And Up Audiences
Warning: Author Chose Not To Use Archive Warnings
Relationships: Blossom Culp/Alexander Armsworth
Characters: Blossom Culp, Alexander Armsworth
Summary:

Alexander discovers that not all postcards are meant to be mailed, and Blossom acknowledges that some curses may be averted but others only embraced.

Blossom Culp! I hadn’t realized how much I’d missed her until I read this novella with its happily ever after.

I am slowly uploading all my old stories to the A03. As a nonuser of ff.net, I’ve already found an advantage of the Archive, which is more comments on my rare fandom stories. I presume people are taking the Yuletide opportunity to browse all the stories in their selected fandoms. I myself have barely started to browse the archive, except that I clicked on the fandom tag for Fringe and found 130 stories!

Selected recs:

Fringe, Help Wanted: Why does Astrid put up with her job? Because she does good and she’s good at it. You should listen to her, as Walter has already learned.

Better Off Ted, Mental Unwellness and the Myth of the Veridian Unicorn, in case you have a between-episode craving. I could hear everyone delivering their lines! Though I suspect the actual show will not incorporate Phil/Lem slash quite so explicitly.

Odyssey 5, The Random Frantic Actions that We Take, Kurt/Neil: brought the characters right back, including Kurt’s arrogance and Neil’s frustration with being a teen again.

Y: The Last Man, T is for Transcend: just because all the XYs died doesn’t mean all the men did. This story is my canon now.

The Middleman, The Mirrorball Malefaction Misapprehension: as with many of these, the beauty is in the voices, absolutely credible. The author had me at “Heart of glass!”