Best Novelette
“Bots of the Lost Ark” by Suzanne Palmer (Clarkesworld, Jun 2021)
“Colors of the Immortal Palette” by Caroline M. Yoachim (Uncanny Magazine, Mar/Apr 2021)
L’Esprit de L’Escalier by Catherynne M. Valente (Tordotcom)
“O2 Arena” by Oghenechovwe Donald Ekpeki (Galaxy’s Edge, Nov 2021)
“That Story Isn’t the Story” by John Wiswell (Uncanny Magazine, Nov/Dec 2021)
“Unseelie Brothers, Ltd.” by Fran Wilde (Uncanny Magazine, May/Jun 2021)
Best Short Story
“Mr. Death” by Alix E. Harrow (Apex Magazine, Feb 2021)
“Proof by Induction” by José Pablo Iriarte (Uncanny Magazine, May/Jun 2021)
“The Sin of America” by Catherynne M. Valente (Uncanny Magazine, Mar/Apr 2021)
“Tangles” by Seanan McGuire (Magicthegathering.com: Magic Story, Sep 2021)
“Unknown Number” by Blue Neustifter (Twitter, Jul 2021) (More links since that's a twitter thread.)
“Where Oaken Hearts Do Gather” by Sarah Pinsker (Uncanny Magazine, Mar/Apr 2021)
And a few more selections that are online:
Best Related Work
"The Complete Debarkle: Saga of a Culture War" by Camestros Felapton
“How Twitter can ruin a life” by Emily St. James (Vox, Jun 2021)
And since I've created this list, some books and short stories I enjoyed this year:
"Far From the Light of Heaven" by Tade Thompson
"Notes from the Burning Age" by Claire North
"Matter" by Iain M. Banks
"The Skeleton Crew" by Janelle Shane
"Lena" by Qntm
"The Machine is Experiencing Uncertainty" by Merc Fenn Wolfmoor
"The Rock from the Sky" by Jon Klassen
"The Gone World" by Tom Sweterlitsch
"Warhammer 40,000: Marneus Calgar" by Kieron Gillen and Jacen Burrows