DHGate is a really bad place.... so many fakes, untrustworthy sellers, delays and prices are way too high for majority of products as well.
Where to sell online? Same good old eBay is probably the best way to get started for newbies. If you manage to make profit there, you can think of ways to expand your business.
eBay is not a paradise but for minimal investment you can show off your products to potential buyers, use well known payment gateway and gain experience. What else you could wish for?