Good day! I finish the UX / UI courses, and for protection, I will also need to make a site. Our teacher gave us freedom in choosing the theme and CMS site. But he told us that when choosing a design, you can find examples on the Internet, and take the selected site as an example. As for CMS, you can define it from the selected site.
I can help you determine the site CMS. Do you have sites that can be for you examples?