That case a page builder definitely might help.
Can you provide an example of what you are looking for?
Generally speaking, you’d use GP to handle the header, navigation and footer section then build your content with a page builder.
But depending on what you want in the content, you might be able to accomplish it with just Gutenberg as well.
Have you checked out our site library?
https://generatepress.com/site-library/
You can find sites with and without page builders in there.