If you want a full-fledged graphic design tool, Glorify could be worth a look. It offers AI-generated imagery, product background generation and background removal, as well as a library of templates and collaboration tools. Glorify offers a range of pricing tiers, so it can be used for everything from casual design to heavy-duty production.
Last, insMind is an AI-powered photo editor that can improve product photos with tools like automatic background removal, background selection from a library and design elements like shadows and reflections. It's free to use and doesn't require any design experience, so it's a good option if you just want to spruce up your product photos.