Welcome! I am new to Grokker, too. I have loved discovering both instructional narration lecture videos (especially about nutrition) and more practical fitness videos. Here are three programs that you might enjoy. Best wishes!

https://grokker.com/cooking/nutrition-101/program/14-day-sugar-reset/5c13e6f4f3c6ef2000cab5e9

https://grokker.com/cooking/nutrition-101/program/21-day-nutrition-reboot/5a1c8d5075c30566d6921591

https://grokker.com/fitness/strength-training/program/weight-management-jumpstart/59276fcb3c53ad5663f899f2