Here are some of the authentic ways to make money online.
Writing : Don't expect this job to be writing about things you like. Most of the content mills and the clients are very strict about type of the content you need to write. Especially US and Canada based clients want you to write on things they need content for their use. You can earn a lot per assignment depending on which client is hiring you. Some clients with low budget will squeeze you under 50$ for around 10K words or more. However if you have established yourself for writing quality content then you can negotiate higher pay. Expected earning figure : 50$ - 700$.
Editing : When it comes to content creation for translation work, books, paper and industrial content then editing jobs are very important. They usually start from minimum 8$ per hour or based on the word count (in context of books). It requires you to have good command over language and also know the formal writing rules. It's not fault finding job, but more of fault correction work. So expect it to have equal amount of work involved. Expected earning figure : 500-12000$
Design : Don't mistake this for web design. The design here refers to mostly the projects related to logo design, brochure design, illustration and vectors. This has paid many designers a lot of money online. The reason being these jobs may appear low level but earning even from small jobs on consistent basis can surpass all of other jobs. There are many success stories of designers who made around 50K USD online from sites like upwork and fiverr. Expected earning figure : 5$ - 4000$.
Translation : Google translate didn't removed the need for the genuine translator. In fact many people online need the translator for converting the voice into the translated content. And also the text based translation is also in demand. So this field is llikely to stay alive for another 10 years. If you are good at languages such as japanese, mandarin, Spanish, french then you have plenty of projects to keep yourself busy. Expected earning figure : 200$ to 1500$
Tutoring : If you are good at something and can teach others to do it then you can make money tutoring. You can teach people how to code, learn english and also other skills. Most of the demand for tutoring is from asian countries like Philippines and malaysia, US and canada too. You can earn a lot of money depending on how you present yourself to students.
Tech support & VA : This is one of the high paying field. Here you have to work as an assistant to the person. Tech support and VA work can pay from 5 $ minimum and onwards. And the work can be small things like excel spreadsheet editing or PDF creation. It can increase slowly depending on your capacity to handle clients per week. This can be tiresome job and also low paid for initial few months. But once it takes off you can start your own setup on this. Expected earning figure: 400$ to 7000$
These are some of the authentic and better paid jobs. Do note that most of the freelance sites also show the SEO, Scraping and few other jobs. I didn't added that into this list because though they are genuine but the clients you meet there will squeeze you for low money. Also scraping and email spamming jobs are borderline illegal in US and Canada so they look for Asians to do this jobs and that's how they circumvent the rules. So even if it pays you should keep yourself away from such freelance jobs.