Go to Reduce Clutter and click Review files to view the largest files and old files that are longer required. In the next window, you will see Storage Optimizing suggestions.
Here you will see a Manage button in the right corner. Let`s learn about the Optimize Storage feature in more detail. Removing large and unused files can recover a lot of disk space. It has a Reduce Clutter feature, which means that you can find large and old files and folders that you probably no longer need and may have just forgotten about. With this feature, you can find and remove the largest and unnecessary files. Since macOS Sierra, Mac users have the benefits of the system’s storage optimization feature.