There are a couple of ways:
1) Sell your item on the Amazon Marketplace at a very competitive price while maintaining good order defect within your seller account which will help you get more the buy box
2) Sell your item via Fulfilled on Amazon since you will be taking advantage of buyers within their Prime program.
3) If you are the manufacturer, apply for a vendor seller account so that you're able to sell directly to Amazon
4) Create a website and use Amazon's product ads program to send traffic to your site but you will have to pay per click.

You may also look at Amazon international sits such as Amazon.ca, uk, au and so on.

Hope this helps.