There is this company Engoo who offers people around the world to become tutors for Asian students considering they are really bad when it comes to English. They pay you 1.4 dollars per 25 minute class (one on one). Sometimes you have bonuses depending on promotion. When I did this aside, 4 hours per day, I could earn 200 dollars. So, it doesn't take that much time but you can earn. If you work full time, and have strong base of students, you can earn above 400 dollars. It seems small for top tier countries but for poor countries is more than minimum wage in those countries, plus you work from home.
So, if anyone is interested: https://engoo.com/app/teach
Also, you don't have to work there to have free material: https://engoo.com/app/materials/en
Consider these materials as my gift to you
So, if anyone is interested: https://engoo.com/app/teach
Also, you don't have to work there to have free material: https://engoo.com/app/materials/en
Consider these materials as my gift to you