Starfall- https://www.starfall.com/h/index-kindergarten.php
AbcYa- https://www.abcya.com/grades/k
Jack Hartmann- https://www.youtube.com/user/JackHartmann
Letter Sound Automaticity 4 seconds- https://www.youtube.com/watch?v=yupUrBuBPlg&t=169s
Letters Sound Automaticity 2 seconds- https://www.youtube.com/watch?v=idkJssPZ_Gw