Feather Icons - Simply beautiful open source icons
API to bot - Convert your API to Alexa skill or Google Home app in 5 mins
IconStore - Free icon packs by first-class designers
Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
Fluent Icons by Icons8 - Colorful and stylish icons for your projects
Voice Principles - Guiding principles for voice design, all in one place