Last year, Google added a feature that allowed you to save image search results and organize them using tags. This feature was only available in the mobile interface, but now you can use it on the desktop too. Just click the “save” button next to an image search result and then click “view saved” to go to google.com/save and manage your saved images.
“This feature is currently available in the US when you search for images on desktop and in your mobile browser. To try it out, make sure you’re logged into your browser with your Google Account; then you can start image searching and saving,” informs Google.
The site mentions that the “website links you save using the Save to Google extension for Chrome can also be found here,” but I couldn’t find this extension. There’s a Save to Google Drive extension, but it only saves images and screenshots to Google Drive.