See this good example of one such report: "Emergency Manager's Report to City Council on COVID-19 (February 2, 2021)." This is for the city of Sammamish, Wash.
I've shared in the past how I think a briefing should be given, and that it needs to start with national and regional efforts/situations before diving into the guts for what is happening in your own jurisdiction. This report does that. Context matters — especially in a worldwide pandemic.
Andrew Stevens is the city's emergency manager. Emergency Management services are provided by Eastside Fire & Rescue.
Good job Andrew!