The official communication forum of the Holy Roman Empire is at:

https://groups.io/g/HolyRomanEmpire

(Groups.io does not sell your personal data, display ads or have algorithms controlling your access. )

Our of necessity we do also maintain a Facebook page:

https://www.facebook.com/TheHolyRomanEmpire1

(Facebook does sell your data and has algorithms which control what you view. Messages may not reach your feed even if you follow our page.)