Sue Larkey and Tony Attwood are well known for their professional development days for parents and teachers. They also offer e-learning and many resources to assist families in managing challenging behaviours. The following e-book has lots of strategies for all students, but especially children with ASD, ADD, ADHD, ODD and developmental delays.

https://suelarkey.com.au/wp-content/uploads/2019/01/Early-Childhood-Free-E-Book-2019-compactv2.pdf

Additional needs/Sensory toys/Social & emotional skills resources

The Elizabeth Richards store has many items for children with additional needs including,  social skills games, therapy swings, sensory items, calming items, hearing protectors, timers. We use many of these items at school.

https://www.elizabethrichards.com.au/collections/special-education