I'm a bid under the weather right now, but have some Chocolate Box Ficathon tales I very much enjoyed:
15th Century History:
Made Glorious Summer: terse and beautiful take on the complex brotherly relationship between Edward IV and (future) Richard III.
Star Trek: Discovery:
Shelter in the Storm: in which Michael and Saru support each other, and Michael's Vulcan background comes in really handy. Season 4 spoilers, but if you've watched it, a must read!
Greek Myths:
Cast the net for a royal Haul: How Clytemnestra and Aegistus teamed up. Intense take on one of the underexplored relationships from the House of Atreus.
Spider-man (MCU):
Five Encounters in New York City: in which Peter Parker encounters all the Defenders and the Punisher. Not at the same time. Set pre- Infinity War, so no spoilers beyond that.
Plans: this one, otoh, is post "No Way Home", and has Spider-man (in dire need of some friendly company) hang out with Daredevil on Valentine's Day.