https://old.reddit.com/r/QuantifiedSelf/comments/m4ztrq/examples_of_youtubersbloggers_in_the/gqykqyg/ "i tried for a month" on youtube to find QSers
https://old.reddit.com/r/wearables/top/ might be something here but
Online courses https://www.coursera.org/specializations/health-informatics