Bro, we are on the same page. I figured that one should find content for your eCommerce website using Google and Bing webmaster tools. You can also use Ubersuggest for competitors' ideas. Write unique topics, do a plagiarism check and give credits to those domains if you are taking content from there by creating internal do-follow or no follow links. Ensure that your content adds some value. It can be a product review, comparison, or giveaway. Please ensure there are no grammatical errors. Use tools like Grammarly for plagiarism and grammar checks and start publishing. Wishing you great success.