What do you mean by the word "best way"? You can approach anyway, but I think social sites would be the best way to start an e-commerce business.
If you want to know more about forex trading platforms you can check out and gather more experience of trading.
There are some strong reasons for this. Because social sites are the best traffic sites nowadays. So, you can easily get customers from it. And people will be interested in your product if you put amazing elements on it.
You can use Facebook, Instagram, LinkedIn, Pinterest, Youtube, and so on. First, approach the audience with greetings and satisfy them with your goods. It will be a blast if you hit the right marketing strategy.
Thanks!