Wish there was something else I could put my son in that would move to help him fall asleep like a…

Wish there was something else I could put my son in that would move to help him fall asleep like a stationary crib never makes sense to me he likes to be rocked and swinged. At this point still i have to put him in his carseat and swing it back and forth cuz I cant think of anything else I can use thats natural movement. :/ so im terrified for when he grows out of his carseat..