OP, most of these are actually platforms that employ people to work for them from home and get paid mostly in dollars, and most of them are legit because so many people have been using them as their source of income, especially Amazon. But notwithstanding, all these require experience and your versatile knowledge of project development, economics, and advertisement, which simply means that you have to put more effort into learning before you can earn on these platforms.

I think you should gone through the forum rules and regulations because sharing of referral links is not allowed in the forum.