An online platform, where people would be able to take foreign language courses, involve in live conversations with the teachers and get completion certificates for a price of a book!
There are many online language courses over the internet and many people have a tough time choosing the right one. That's why some of them buy a book and try to learn on their own, others choose to attend local language schools, which usually cost a bunch of money. These methods are time-consuming.
My idea is to create an internet platform, where native speakers could create long-lasting language courses (e.g. Spanish for Absolute Beginners) and users would be able to sign up for a monthly subscription. Courses would be categorized, according to their levels. Moreover, the platform will only host a few teachers of every language, in order to maintain the quality and not to overstuff the platform (such as Udemy did).
Best Wishes from Germany