Get physical toys for the home or yard: Pickler climbing set, play couch, stepping stones, rocking horse, let him climb safely all over furniture or stairs to tire him out. Play chasing games.
Some Montessori toys or outdoor toys .
I have a pop up house and a ball pit for my daughter and she LOVES them!
Get a ball pit! You can find them on Facebook a lot. Also stimulating their brain with sensory and learning experiences can also tire them out! Put them in the bath with pouring toys or a strainer and let them experiment! Put paint in a plastic bag and let them squish it around. You can also get one of those ride on rockers or little balance bikes