Weekend babysitter for 9 year old boy

We are looking for a babysitter for our 9.5 year old son Nicholas, primarily for Saturday or Sunday evenings.

Nicholas is ADHD/autistic, and can be hyperactive or impulsive at times and does need a lot of 1:1 interaction. He is very creative and fun-loving and does really well when he has someone to engage with.

We have lots of toys and games at home that can be used for play. We'd love to have a babysitter who could engage with Nicholas in physical games and play.

We would initially like our babysitter to spend time with Nicholas in our home, while one of us is at home as well, until we all get to know each other. Then after some time, it would be good if Nicholas could be with our babysitter while we have a much needed night out.