1. Submit the modules in PrestaShop Addons. PrestaShop marketplace(PrestaShop Addons website) is a good place to promoting and selling PrestaShop modules or Themes.
2. Create a separate Store to sell the PrestaShop modules.This is another option, you can sell directly in your website .
3. Participate in various forums and submit the PrestaShop modules links. Forums are a great way to spread the word across the globe.
4. Write a detailed description about the module with hight quality screen shots in the PrestaShop Addons as well as in your website.
5. Become an Industry partner in PrestaShop to positioned the module in top of the search results in Search Engines.
6. Get reviews from the customers also is very important. Good customer reviews helps to promote your module or theme.
7. Sharing the PrestaShop modules in various social website Like Facebook, Twitter, LinkedIn, etc.. Building and Maintaining the professional Business Page in social media will helps to promote the PrestaShop module.
8. Create a Demo website for the both Frontend and Backend. Make a Videos of the installation of the module so that customer can well understand about the module.
9. Write a blog about the PrestaShop module and promote it in various social media websites.
10. Write more guest blogging about your PrestaShop module will also helps a lot to promote your work.
If you have any other methods don’t hesitate to share with us.