As you already know on some search results in Google you will see there is a dropdown with "People also asked" which features relevant questions which can be FAQ's, blog posts, videos and more. These are present on 80% of Google searches. In order to have a better chance of having your content featured here you need FAQ schema mark-up. Find someone who appears in the serps, run the page through the schema testing tool and see what schema they are using. From there you can replicate it as your own using this schema FAQ markup guide.