Earning money online by researching is the most awesome way of income,at least as for me,why am I saying this?
Because Imagine that you are being paid for knowing,you're actually making researches that lets you gain soooo much information,grows your knowledge and your searching skills,makes you exposed to so many fields,it affects you and your mindset in a direct way,and thats the way I see it.
You need to be good with searching and you need to find the best websites to provide you with information,thats all what you need.
For that,many websites provide you with this opportunity.
The first one is:(https://www.justanswer.com/)
JustAnswer has too many fields that you can be an expert at,Health,Law,Finance and many other fields.
You must choose the field that you're passionate,interested about and the field that you think you could master easily and professionally.
The second is:(https://start.askwonder.com/researcher/signup)
AskWonder is same as JustAnswer,a research assistant that hire experts to research about specific fields or specific questions,but it maybe more advanced.
The third is:(https://www.experts123.com/)
Experts123 is just as the two above,choose any of them that suits you.
The fourth is:(https://www.upwork.com/)
But as for Upwork its different,Upwork has too many job offers but you could apply to the researching tasks and update your profile to have more probability of employment.
Researching is a great way to obtain so much information and so much money simultaneously,just know the field you want to be an expert at,and we wish you all the good luck.