Has I said before the best way to find models for your photoshoots is to ask a member of your family, or if you have children who like to pose for the camera, even better! :)
Children photography is not easy. Start to practice some photography sessions with your own and you'll learn what you have to improve. For me what works better is to turn it into a fun moment for everyone.
Here are some of my first home made quick photoshoot with my daughters: