Behavior is communication. ABA isn’t necessary, because it is compliance based. You should not be working to alter who your child is, but helping them to adapt while giving them the support & accommodations they need. There’s a delicate balance, but with assistance, you CAN find that balance. This flowchart is a good way to find solutions to aggression, overstimulation, and/or meltdowns.
The full/larger version can be found here.
Note: If you end up at the option to “record” the behavior… DO NOT VIDEO IT. Write it down. This is essential for the privacy and respect of your child. Do. Not. Video. Your. Child. Having. A. Meltdown. EVER. There’s no reason for it. NONE.