Autism Self Advocacy Network (ASAN) (advocacy and education)
Shutting Down Bullsh*t About Autism (an excellent short video discussing common misconceptions that surround autism)
Agony Autie (Youtube content creator with educational videos on autism, stimming, meltdowns, sensory processing and more)
The National Autistic Society (Youtube channel here to transform lives, change attitudes and create a society that works for autistic people)