Here are Amazon's bestsellers in Autism & Asperger's Syndrome.

https://www.amazon.com/Best-Sellers-Autism-Asperger's-Syndrome/zgbs/books/282950

If you like fiction, there's always The Curious Incident of the Dog in the Night-Time

https://www.amazon.com/Curious-Incident-Dog-Night-Time/dp/1400032717/ref=sr_1_1?crid=286XGVYYF6FV8&keywords=the+boy+in+the+nighttime&qid=1680679020&s=books&sprefix=the+boy+in+the+nighttime%2Cstripbooks%2C145&sr=1-1

or Commoner the Vagabond

https://www.amazon.com/Commoner-Vagabond-Robin-Ray-ebook/dp/B01FCMA5AU/ref=sr_1_1?crid=28H5VC221EKUL&keywords=commoner+the+vagabond&qid=1680679110&s=books&sprefix=commoner+the+vagabond%2Cstripbooks%2C190&sr=1-1