Another vote for the 5 season tv show Parenthood. Maybe more than 5 seasons? Love the parents of the kid who is autistic. Love the kid, love the cousins, all of it.

I look for characters that make laugh at the insanity of this parenting job and at myself so I especially liked the fist episode of Speechless. It made me proud to be that crazy mom who is a fierce advocate for my son.

Also about young adults, not kids, and autistic..

How to Dance in Ohio. You can watch the documentary through Youtube. This describes it. https://en.wikipedia.org/wiki/How_to_Dance_in_Ohio

It was made into a Broadway musical. Almost the entire caste was autistic.