Find lists of people that are online instructors - web scraping or customer lists

I need active lists of users that are instructors on places like udemy and many other places - maybe emails, maybe phone numbers, maybe profiles on websites, I need to reach out to these people and convince them to become users on howclip.com

We use a different system for using videos for education. I need users that are targeted type of users

Let me know if you have such lists or know how to approach it