Photo AI Index search & Detection

Please pass this on to your engineers, please incorporate photo indexing where I can select someone's face and have Dropbox search through all my photos and find all the associated photos. But don't limit it to just human beings but let it be anything. Please incorporate this feature. Because there's so many pictures and or videos i want to delete but i have hundreds of thousands of photos to go through and it's impossible to do so. Also, it be cool if i can choose someone's face and have the option to "delete" their face in the group photo.