I am bad at finding appropriate keywords for my photos so I built an app that taps into artificial intelligence engines provided by Amazon and Clarifai to suggest keywords.
It really was built to work beside Photo Mechanic. I'd suggest Photo Mechanic builds this tech into their app though.
You can see how it works and download it here:
https://www.daviddegner.com/essays/keywords-app/If anyone is interested in helping develop it I posted the python code on GitHub
https://github.com/ddegner/Keywords