What is the best improvment for ecom?

[LLuSSh]

What are the best techniques for improving your search rankings on Google if you run an ecom business on a platforms like ecomzy, gumroad, payhip? I'm still pretty new to SEO and trying to figure out what actually works for these kinds of digital product stores. Should I focus more on keywords and product page optimization, backlinks, creating blog content, Google search console, or something else? Would really appreciate some advice from people who have actually tried this with their own stores. Thanks