Payments Format:
https://github.com/pnp/List-Formatting/tree/master/view-samples/payments-format
Bing Maps format
https://github.com/pnp/List-Formatting/tree/master/column-samples/generic-bingmaps-format
File Picker format
https://github.com/pnp/List-Formatting/tree/master/column-samples/generic-filepicker-format
SharePoint List Formatting Samples
https://github.com/pnp/List-Formatting
Microsoft Solution Gallery
https://adoption.microsoft.com/en-us/sample-solution-gallery/