You can start by checking out the e-commerce list on awesome selfhosted. At a glance there are multiple which seem to be easy to set up, and require no code, so you should take a deeper look and decide based on your needs.
https://github.com/awesome-selfhosted/awesome-selfhosted?tab=readme-ov-file#e-commerce
If you find something there that suits your needs make sure to let us know why you chose it :)