Parallax 3.0+, Retina 4.0+, Mobilia 5.0+, Responsive 6.0+ and Turbo 2.0+ all include support for the Shopify sections feature. For a look at how to get started setting up your homepage and how sections work in each of our themes, click the theme name here:
It's also possible to use most section types on one or more of your store's pages as outlined here.
You may also want to explore our "Section By Section" blog series that introduces how each section type works and creative ways to use each of them.