There are a lot of docs in the gallery, what kind of docs do you want to show to your colleagues?
I personally have documents that are simply presenting information, allowing for searches on documents, to help with (SAP) software implementations, automate office processes. (The latter covers documenting meetings, sending minutes, recording and managing action items, and grouping them into small projects.
I have a massive Personal Information Management system. I know of stock management solutions, and integrations to hundreds of other apps: Gmail, Outlook, Calendar, Slack, Shopify etc, etc.