It's not longer new that slot of people are into buying goods from original seller and resale to make small money.
How to go about it
Visit companies portal and see what they have to sell, remember some of these goods are in demand. Like creams, soaps, scrubs, bags, boxes etc.
Buy them from the company and post on your social media, WhatsApp status or visit house to house to market these your goods and sell them, people will surely buy because these goods are in higher demand.