I've got a bunch of spare shinies that are greyed out:
Shiny Dream Ball Galarian Ponyta (SwSh) - A spare shiny that hatched while emptying out my boxes after I already got the 2 I needed.
Shiny female Net Ball Golduck or shiny male Quick Ball Golduck (SV), caught in the wild.
Excess Ultra Wormhole shinies, currently chilling in Home:
Shiny Swellow:
-Timer Ball, Quirky nature, female.
-Luxury Ball, Bashful nature, female.
-Quick Ball, Gentle nature, female.
-Luxury Ball, Careful nature, male.
-Luxury Ball, lonely nature, female.
-Nest Ball, Brave nature, female
Shiny Grumpig:
-Luxury Ball, Hardy nature, male. Own Tempo.
-Luxury Ball, Relaxed nature, male. Thick Fat.
Shiny Heal Ball Medicham.
Shiny Net Ball Swanna.
Shiny male Abomasnow:
-Quick Ball, Bashful nature.
-Premier Ball, Naive nature.
Caught in Legends: Arceus... don't really remember what all the new balls in this game were called lol
Level 18 Naughty male Luxio.
Luxray:
-Level 41 Naughty male.
-Level 36 Modest male.
Level 30 Docile Mothim.
Drifloon:
-Level 4 female, Mild nature.
-Level 10 female, Modest nature.
Level 7 Brave Kricketot
Level 29 Hardy Spheal.