edit the content in front of the featured image on every page

How do I edit the content in front of the featured image on every page (top of the page, just below the menu bar)? For example, on the GD home page, there is the page title and the search bar and popular categories on top of the featured image. I would like to have both the search bar option and the log in option there for the users who are looking for information and who want to add listings. Preferably, they are separated into two columns like in this website (https://seniorian.com). I would also like to add some text or even put widgets in that space.