I've begun to follow a number of autistic advocates and one common theme is their dislike (to put it mildly) of Autism Speaks.
This video does a good job of summing up many of their thoughts. Citizen Autistic: https://vimeo.com/62495103
Some other websites to check out
The Thinking Persons Guide to Autism https://www.thinkingautismguide.com/
Autism Self Advocacy Network https://autisticadvocacy.org
Pucks and Puzzle Pieces (a father's view) https://pucksandpuzzlepieces.com/