Banner Popup is a great module to show important content to customers in priority. It provides you a guarantee that customer has seen what you wanted to show them first. The content shown will be of your choice, which you think will get more sales and also look better at same time.
Home Tab Filter Product module filter product by tab (dynamic jQuery tabs) on your homepage, each with a selection of products: Special Products, Feature Products and Categories
Feature Categories allows you to feature a list of selected categories on your website. If you wish to promote certain categories, this would just be what you are looking for.
Advertising Text Scrolling Free Module Prestashop that can animate (scroll) a set of elements either automatically This module can be performance intensive and speed option.