Here are a few platforms for e-commerce websites. I like developing with WordPress + WooCommerce.
1. Shopify - User-friendly platform with comprehensive e-commerce tools.
2. WordPress + WooCommerce - Combination for customizable e-commerce on WordPress sites.
3. Wix - User-friendly platform with a drag-and-drop builder and e-commerce features.
4. BigCommerce - Cloud-based platform with built-in SEO and payment integrations.