Hi, hope you are doing well.
If You are looking for SEO friendly platform, we can use Wordpress platform I will suggest you some good themes or you can provide me references I will make it custom.
I have good experience in ecommerce website development, I will help you in setting up the store properly adding contents, products, adding payment and shipping method.
I am using these cms for the last 4 years WordPress, Shopify, Prestashop, Opencart, Moodle, Joomla, SquareSpace, Wix. I am also good at custom coding Php, Html/CSS.
Please invite me on chat so we can discuss it further.
Thanks