Brainstorming further: Think about very specific symbols that fit your desired outcome. What emotions would you like to convey with your photos? Keep the final result in mind – this will help you narrow down your search significantly later on.
If you are looking for beach photography, you will come across a lot of pretty trivial results. Try to imagine some specific things that you associate with the beach, which picture will help create the right mood, and not just a decorative dummy.
Here’s what you’ll find with the keywords “sun + confetti” instead of the usual “summer.”