Thing about what can be done with Linux is a very broad topic and beginners can be very immediate on where to start with something as simple as which Linux Distro should they go with.
That was a huge reason why I worked/work on the A Linux Distro Guide Wiki on the forum. I wanted to have something can use as a point of reference for those different distros people could look into.
To that end I think it might be good idea to go over some basic things you can do in Linux which are really cool and neat like:
Copying Mass Amount of Data using command line to another Hard Drive
Using Linux to Troubleshoot your Windows Computer Issues
etc.
Basic idea to give people stuff they can use to build a foundation on the start of their Linux Journey.