It depends on what you mean by the online business. Ecomm? Marketing services? Affiliate marketing? The quick answer is: you can, but not quickly.
There are free resources everywhere, but you have to put the rubbish together in a valid place, even if it is a promise. Content marketing is free, but not true-to do this effectively, it requires skill while you learn from others to get it. But YouTube is a good place for free information.
If you are a very persistent person, you can take a step in a very patient time. The quicker way is to choose an online business type that fits your personality (temperament, patient level, continuous level, etc.), and then study mentors that can get you a lot quicker and then pay them to get you there.
But I know a site, it is great for foreign traders—-TradeSNS.
TradeSNS through the analysis of a large number of data, we discover the logical relationship between people, company, product and custom data. And combine it to develop a powerful engine to achieve one-click search. Enter the keywords in the TradeSNS, you can search for all the people, companies, products, and custom data that are relevant to them, and then sift through the multi-dimensional conditions to find potential buyers.
TradeSNS hope that the majority of netizens comply with the relevant laws and regulations of the network, and prohibit the release of all kinds of sensitive false information;
At the same time TradeSNS will crack down all kinds of illegal dissemination activities and harmful information, building a harmonious space.