Any question that is related to search in the context of Sitecore SXA (Sitecore Experience Accelerator) should use this tag
To enable visitors to quickly find what they are looking for, SXA comes with flexible out-of-the-box search functionality. There are different search renderings available from the Toolbox, for example, renderings that add a search box, renderings that sort or filter the search results, and so on. This makes it easy to set up a simple search solution for your site.
For example, you can add a basic search solution to your page that contains a search query box and lists the results with pagination.