SAP Fiori App Reference Library

This is a great resource from SAP. Filter all available Fiori apps by Line of Business, Industry, Role, Versions and Back End Components to browse content relevant and applicable to your organisation. Once you have found an app you are interested in, you can look at the implementation requirements and all of the technical content needed to deploy.

https://fioriappslibrary.hana.ondemand.com/sap/fix/externalViewer/

Also – take a look at Fiori reference content now contains cloud content