There are different dropshipping platforms to buy and sell the best-selling products. To purchase dropshipping products from different product categories, you can choose: 1. Aliexpress 2. Alibaba 3. CJ Dropshipping 4. Made-in-China 5. Dhgate You can buy from these sites and sell on Amazon, eBay, and other dropshipping stores. For dropshipping process, you must have the dropshipping niche and dropshipping method to get new customers.