Ebay itself is an ideal place to buy products in wholesale. You will have to look in detail and find sellers who are also willing to sell in bulk for better prices. Most transactions are of a retail nature in Ebay and sellers of large scale generally do not mind moving bulk quantities as they can get the cash flow in quicker and it also saves them certain other costs and headaches. You will need to have storage space to make sure that your house is not full of merchandise.
This is one of the largest portals in the world where large businesses interact. You can search and choose from thousands of manufacturers and traders and get anything from them that you want to sell. You will get options of all kinds of qualities and products and prices as well. All you need to do is to pick a reliable seller and make your purchase.
If you are planning on selling a product that is available wholesale in the local market, you can visit a local wholesaler and work out terms and conditions with them. This provides you with the flexibility of meeting the seller in person and be able to see the merchandise in physical shape before you order.
You can also go to the manufacturer direct route. Many manufacturers are fine with selling products directly to the retailers and you can make use of this service offered by them. The prices are quite obviously good as the manufacturers will not have to pay the middleman in this process.