I didn't originally Intend for the last aks to be a request, more just saying that I love hearing abt autistic hcs but seeing as I like to hear them and you like to talk about them, I'd love to hear about your general autistic hcs for haikyuu!! If u want to treat this as an request then u can bc I'd love to listen 😊
Kinda structured this like my autistic BNHA post!
Here are the characters I generally think fall in the spectrum: Kageyama, Ushijima, Tsukishima, Aone, Kenma (trust me there are more, I can and have thought of every single character being on the spectrum at least once)
Kageyama is probably an elementary school diagnosis.
He has a special interest in volleyball although that goes without saying
He is definitely a tactile stimmer. I can see him with one of those spinner rings!
Ushijima was probably diagnosed 3-4. He was verbal in time with his age but he wasn’t meeting certain social development markers
Another person with a special interest in volleyball!
He’s also a tactile stimmer. Prefers the texture of things like sand and slime/putty
 i’ve already said this but Tsukishima’s safe food/ go to meal is fries and nuggets. Specifically the smiley face french fries and the dinosaur nuggets (yes they do taste different)
He rarely strays from his safe foods
He probably got diagnosed late in middle school and gives me internalized ableism vibes (there are a lot of people who are late diagnosis who struggle with internalized ableism)
Auditory stimmer primarily with songs/music.
He had a special interest in dinosaurs and volleyball to a much lesser extent
Aone was diagnosed at 2-3 because he was way behind developmentally when it came to speech. He probably didn’t start talking till he was like 3.5 or 4
Primarily nonverbal. Thats it that’s the whole point
Visual stimmer!! Paint mixing videos and those slime videos where people mix glitter into slime. Vocal stimmer too!
Specifical interest in reptiles!!
Kenma is another one who very rarely stays away from his safe foods
He will only drink four flavors of monster energy: Pipeline punch, mango loco, original, and ultra red
Special interest in video games!! Timeskip!Kenma owns all of the nentendo consoles and is on a mission to own functioning versions of all the games. 
(Timeskip!Kenma also owns a MAME cabinet)
Tactile stimmer? Likes the feeling of pressing the buttons on a handheld game. Also an ofactory stimmer. He just really enjoys the way certain things smell