Highlight why you chose to approach them i. To create one for your audience, compile your best resources in a PDF eBook, place it on a landing page and offer it for free. You can find courses in the relevant categories and then sort them by popularity or the number of reviews.
This is the kind of immediate value which gets people interested in a freebie. Just do what feels natural and what feels comfortable. So our lesson was just what you suggested in regards to checking out what their audience is like and the size of their following and page views, etc.