Great. What will be the format of this course? We run an online course discovery platform called
http://mysliderule.com and what we have seen from users' browsing behavior is that learners typically prefer courses with video lectures, and codecademy/udacity style interactive in-browser exercises if possible. Also consider hosting your course on marketplaces like Udemy and Skillshare too .. they have a very vibrant community and can be an easy source of user-acquisition for you