Here are the files we use for our training on simple project collaboration and Power BI reporting:
Power BI Weekly Status Report instructions
Power BI Weekly Status Report file with data
Power BI Pulse Report instructions
Power BI Pulse Report file with data
My colleague Jeff Spencer has published a series of videos walking you through many of the steps around setting up and configuring Project Online we teach in this hands-on class. You can see his videos on his youtube channel or download them here.