Maybe this topic has been addressed already, but I have not seen examples on the map.
As an example: consider the mountain range Alps as level 0 set: an independent mountain range in Europe.
One of the subsets would be, for example, the Pennine Alpes, level 1
A subset of these would be the Mischabel Group, level 3, in which individual peaks as Dom, Taschhorn etc. can be identified, level 4.
Depending on the zoom level the map would render Alps - Pennine Alps - Mischabel - Dom
Mapping these as mutipolygon relations, with boundaries not mapped but the center with the name indicated in appropriate character size and text orientation and when zooming in the sub-level (one only) and individual peaks, with (major) names at level 3.
If I overlooked this topic, let alone the solution, please hint me to this.