Ok but autistic Tolkien elves.
Elves who get so easily overwhelmed by all they can hear and see and sense. The Lord Elrond teaches them how to focus themselves on the waterfall of Imladris, and a small number of them go to its base every morning and close their eyes and focus in on just the rushing water. The Lady Galadriel teaches another approach–to climb the tallest tree in the Golden woods and sit in its high branches and watch wordless Arien or Tilion glide through Varda’s silent realm.
Autistic elves who stim with tree bark, tracing its intricacies and seeing how deep they can sense the textures. Elves stimming in the rivers and teaching the allistic elves how best to move with the water, and Ulmo blessing their dancing because while the allistic may have a connection to the waters, the autistic elves in their hypersensitivity discover new ways of moving that mimic the musics Ulmo still remembers in the Creation of the World.
Autistic elves finding a special kind of kinship with autistic humans and even dwarves, and wanting to help teach them how to be good and kind to themselves. Autistic elves whose special interests are language or autism itself writing tomes in human languages for doctors on what they’ve found makes them happiest and healthiest throughout the ages.
Autistic elves with special interests in orc and goblin culture helping travelers learn how to spot the signs that they could be walking into a dangerous area and using their knowledge to help keep travelers safe.
Autistic elves being a deeply positive part of elven society.