If you are looking forward to pursuing a professional career then I would say that digital or content marketing would be the best choice if you are a writer or a marketer. Moreover, you could also start as a wikipedia page creation service. However, you just need to write a wiki page, and for that all writers must know what they are writing about, and then they need to reach out to people, connect with them, and collaborate over your piece of work to get their hands on the best information. Collect your data and then create your first draft that might require many edits. Is it not quite easy for any writer?