How can I monetize the English language portal?

Question

Monetization

Let's imagine that I have a portal in English, on which videos in English are posted daily from a blogger with 100k+ subscribers, professional teachers. There are various game tasks for practice on the site.
How can you monetize besides advertising on Youtube? Is it worth it to follow the path of LinguaLeo?

Answer 1

Advertising is not very effective.
And here profile services are other money.
For example, remote teachers. Negotiate with them about the supply of customers.

Answer 2

tuts.envato.com model you can try. Ranked teachers have individual paid courses with the first three lessons free.

Answer 3

Is the answer still valid?

Answer 4

Specialist. projects!