I run a game where characters apart of their mechanical advancement can become part of various organizations to gain standing and influence.
At the moment the barbarian became chief of a small tribe, the priest is an aspiring member of an organized religion (at the same time being a mole from a much less organized religion) and the wizard entered in partnership with another wizard with much greater power and worldly influence.
I would like to make it so that the players' decisions and characters' actions determine if they advance, keep or lose their positions.
I find the renown system from DMG too simplistic for my needs. In my impression it works well for ordinary rank-and-file membership but does not cover leadership positions.
So my question is where can I find a subsystem that I can steal for such a purpose (in whole or in parts)? It does not have originate from any D&D variation but need to be portable to D&D 5ed mechanics.
I would like to emphasize social aspects - showing that the king needs skill in playing lords against each other much more than butt-kicking.
I also would make it a meaningful choice for my players to either skip work doing heroic stuff or stay and work on their position boring day by boring day.