What makes making money as an online English teacher particularly interesting and easy with sites like VIPKID is the fact that you don’t have to spend any time or money trying to find paying clients. VIPKID is a huge platform with hundreds of thousands of paying students. The site takes care of everything for you. Bringing you students, scheduling classes, pay, etc. All you have to do is set up your own schedule (yes, you get to decide when you want to work!) and teach during those hours.
I personally like this one for some spare cash. It does not take much to earn an extra $20 – $50 a week. Some claim that they are able to make a living by dedicating their time to different jobs at mTurk. You will have to go through a learning curve, but once you get comfortable, you will find plenty of good and interesting HITs (Human Intelligence Tasks) to work on.

Now, unfortunately, there are a lot of scams when it comes to GPT sites. So it’s best to stick with well known, trusted sites that have been around for a while. You don’t want to complete offers for a month then when it’s time to cash out your earning find out that the site no longer exist. Trust me, I have seen a lot of “here today, gone tomorrow” rewards sites.