For the best e-commerce either SEO is the best or Social networks ?
No particular answer for your question because best E-commerce platform is only which satisfy your business needs completely.
There are various popular store available
Shopify
Bigcommerce
Volusion
Big Cartel
You can contact any experienced company , discuss your needs and get best solution.
Volusion is a good choice having rating of 8 out of 10.
The entire thing depends upon the product and services you want to sell through your website. Both SOE and Social media are the powerful platform for selling any product. All you just need to carry out a proper campaign for social media and SEO.
Organic search e-commerce SEO is crucial to the success of any e-commerce store in 2020. How does it work? Search engines have crawlers that gather information from content across the web. The crawlers bring this information back to search engines to create an index