It's very rare to start up a business without capital because in the society we live in to days business without capital is a waste of time because you won't have money to carry out others from clients or customers even if you are doing the business on social media. However, I heard that affiliate marketing pays good but to me it's a time consuming job, because most people doesn't believe on words, they they believes on actions. They need to test the product before agreeing that the product it's good, and scammers have make things so worse that it's hard to see someone from internet that will easily believe you are from a legitimate source.
Business without capital is highly complex, but everyone can make good money using their brains. You said that marketing is a reasonable payment. Yes, affiliate marketing will pay good money, but if you want to do what you want, you can learn from YouTube. However, we need that mindset to learn from there. We can only do something good if we wonder who will bring us money. I will refer you to affiliate marketing to start from now because you need to put the time into it initially. You will get little or no income, but if you can progress well with time, you will see some good income coming your way. Many types of business can be done for free. Besides marketing, learning about Asia is also essential. If this is done, it is possible to proceed with affiliate marketing.