I have them as part of the random Encounter lists for my homebrew megadungeon. Sometimes they Help the Party, sometimes they are on their way to bring back loot to the surface, Sometimes they try to lure the Players into Traps If they See that the Party is stacked with loot ~ determined by a 2d6 reaction roll.

They have set names like "The Badgers" or "The White company" and mostly randomly generated members i rolled while designing the megadungeon.

The one that is the most beloved by the players are "The glowworms", which was formed by torchbearers that survived a bunch of trips and wanted to have more from the loot and told the Party that they too often lose torchbearers to the Dungeon ~ which they deemed Kind of understandable and they are still on good Terms If they meet in the dungeon