Find Online (or build?) Automator (Mac) Workflow to label all SQUARE images

Manufacturers send me thousands of images of products for our e-commerce store. Many images are already square and do not need to be modified. I prefer them ALL to be square. What I want to do is find/have built a script (preferably Automator) that will label all SQUARE images (2000x2000, 1000x1000, 250x250 etc.) so that I can set them aside in a 'Done' folder – I am trying to avoid opening hundreds of images in Photoshop that do not require modifying. Find Online or Build an Automator (Mac) Workflow / Folder Action that will identify and label all SQUARE images in a Folder. I am open to other methods, like Terminal, AppleScript etc., but highly prefer Automator. Please do not recommend Automator Workflows that will simply crop images – this will not help me as all images have individual cropping requirements. Lastly, if you do not read this, you will not be considered. I ignore bots and scripts that auto-generate proposals, so please briefly tell me your favorite color, about your faith and a hobby you have. First person to correctly find this solution online can make a quick $10. If it does not exist, please send me a quote for what it would take to build this Workflow. Thank You Peter