Aristocracy is a bad idea because the Elite are stupid, morally corrupt, & subject to ideological possession.
Monarchy is a bad idea because there is no way to ensure a good king ever a tyrant.
Western republics are designed to be such a mixed system, but lately have seen the emergence of an Elite “ruling” class.
The worldwide surge of populism is a correction to this.
The People must then assert their own right to govern THEMSELVES over against the self-appointed Elite.