Über die fünf größten Fraktionen der Sword Coast, gibt es auf der offiziellen WOTC Seite eine gute Übersicht:

https://dnd.wizards.com/dungeons-and-dragons/story/factions

Der Schnelligkeit halber aber hier eine Kurzfassung, die um Abenteuerspezifische Einträge erweitert wird, sobald ihr euch einer (oder mehreren) der Fraktionen angeschlossen habt:

The Harpers

A scattered network of spellcasters and spies, the Harpers advocate equality and covertly oppose the abuse of power, magical or otherwise. Agents operate in secret and emphasize stealth and subtlety, or at the very least discretion. Bards and wizards are their most prominent members.

The Order of the Gauntlet

This faction is primarily a military organization made up of paladins, clerics, and monks. Members of the order are faithful and vigilant seekers of justice who protect others from the depredations of evildoers. They exact swift retribution against those who violate the law.

The Emerald Enclave

This widespread group of wilderness survivalists preserves the natural order while rooting out unnatural threats. Many of the Enclave’s members are barbarians, druids, and rangers. Some wander the untamed lands while others make their homes on the outskirts of towns and villages, where they help to protect travelers from the dangers of the wild.

The Lord's Alliance

The Lords’ Alliance is a shaky compact of aggressive political powers concerned with mutual security and prosperity. Fighters and sorcerers are prevalent among alliance agents, and they are often glory hounds seeking personal recognition. Most agents are lawful or neutral; in the courtly circles of the lords, those who don’t follow the rules seldom last long.

The Zhentarim

This shadow network seeks to expand its influence and power base throughout Faerun. Its members coerce, persuade, or buy their way into every major area of influence. Rogues and warlocks fill the Zhentarim’s ranks, but the faction recruits any who can conduct its business without too many moral reservations.