The Lady Sleeps
What rival organisations should exist?
What friendly ones that the PCs can join and rise in power within?
An order of Knights Churches (including sects within the Church) Guilds (Thieves Guild + others) Societies (unrelated to character class) Society (in terms of the local aristocracy)
What the PCs choose to do can then influence who becomes their enemy. A group that ignores or does badly in High Society would make enemies in the aristocracy, whereas a group that goes for that avenue could make enemies amongst the Guilds or other “working” clubs who see them as part of the establishment.