The best option (if you’re from North America and if you have a Bachelor’s Degree in any subject) is to become a VIPKID teacher and teach English online through their platform. After you’ve been through the interview and are hired, you’ll be given lesson plans to choose from and can start teaching eager Chinese students. You’ll earn between $14 – $22 / hour and you pick your own hours.
These little jobs are done by people who log on to a company’s site and choose tasks, which could be as simple as clicking a link. Amazon's Mechanical Turk is one of the most well-known sites of this type. Also, there are crowdsourcing projects, which are similar to data entry, where companies engage an army of virtual workers to each do one small part of a larger project.