Try this site for a few ideas. Might be wise to do a search for Children’s Sunday School Lessons to check what may be found.
INSPIRATIONAL PRAYERS:
https://www.inspirational-prayers.com/power-kids.html
In the meantime, there are these two sites:
THE BEGINNERS BIBLE
https://www.youtube.com/channel/UCiM9mWNxTWpKY-V9Eb9TfkA
WATCH KNOW LEARN.ORG
http://www.watchknowlearn.org/Category.aspx?CategoryID=3483