One of the hardest things for new developers to pick up on when it comes to Atomic Design is deciding on what category a particular component should be categorized under.
To help with this problem, I've put together an Atomic Design categorization tool.
This tool is basically a simple quiz that scores each category based on your answers. It then recommends the highest scoring category to you.
You can try it out here: https://dan503.github.io/Atomic-Categorizer/
The tool does not work in IE.