I'm working on Photo Recall an Amazon Alexa skill and Google Assistant app that let's you play photo slideshows by voice: https://bit.ly/photo-recall

I've also been working on Custom Voice Commands an Android app and web app that let's you load web content like YouTube video playlists, Google Drive or OneDrive documents, manage lists and reminders by voice plus ask Alexa questions: https://bit.ly/custom-voice-commands