Check out https://www.starterstory.com/. There' a list of tools that these e-commerce companies use.
Check out the tools page - https://www.starterstory.com/tools and you can see some of the more popular tools and who is using them.
edit: And anecdotally, I've interviewed a few companies doing $100k/mo and loving Shopify and WooCommerce. I think those are great places to start.