A little late comer to the party, but if you already have a certification…perhaps consider studying the great instructors:
Gin Miller’s “Step Reebok: The Video 1992” is phenomenal. Her instructions and choreography are simple/safe/fun, yet effective! https://www.youtube.com/watch?v=gT3XM7W-xAw
Keli Roberts is another instructor who had exceptional videos for step: https://www.youtube.com/watch?v=Sh711DXTNhQ
Hope you’ve been working at your routines!