Babies on the move

Anyone else have a baby who loves to be on the move.. but doesn’t actually know how to move yet?! I think my son will crawl soon since he gets on his knees and rocks, but he’s not there yet. He LOVES to do this though he will just rock and rock if we let him. When he’s in his jumper too he loves to stomp his feet and march march march. Any ideas of activities I can do with him where he can move but with support obviously? Anyone have a doorway jumper that their babies love?