Well, it depends on the field you would be into and the materials available, if you are well educated in English and grammar I would advise you use Gramlee. Gramlee is a company that helps writers edit there work by correcting grammatical and punctuation errors. You can work from any part of the world as a copy editor or proofreader, their application is short and easy to answer but I would advise you take your time to compose each answer, maybe save the page, write down the questions and then give it a deep thought and then right down the answers before going back to the site to write the answers. The best part is you wouldn’t be needing much material just a quality phone or laptop. This is the link to the application. https://docs.google.com/forms/d/e/1FAIpQLSchRtqL3GaaafJDfVpycUjcF2-p1CRoRCSfrYXIm7k17BixZw/viewform