Archangel

Archangels are a bigger, stronger form of angel and usually their direct commanders, though they do themselves often tend to serve various gods as trusted, high-level servants. They are essentially the goodly equivalent of Demon Princes and Archdevils.

D&D

In Dungeons & Dragons, there are several groups of exalted celestial paragon who are functionally archangels, even if the name itself is never used in D&D canon - they tend to prefer the term "Celestial Paragons". The most recent description of all of these can be found in the splatbook Book of Exalted Deeds for Dungeons & Dragons 3rd Edition, where they are divided into several sub-groups.

The Celestial Hebdomad is a collective of seven lordly Archons who serve the cause of righteousness from their home on Celestia - these are the closest of the Paragons to "traditional" archangels.

• Barachiel, the messenger: Ruler of Lunia and coordinator of Celestia's defenses should it be attacked.
• Domiel, the Mercy-Bringer: Ruler of Mercuria.
• Erathaol, the Seer: Ruler of Venya and patron of seers and prophets.
• Pistis Sophia, the Ascetic: Ruler of Solania.
• Raziel, the Crusader: Ruler of Mertion and patron of paladins.
• Sealtiel, the Defender: Ruler of Jovar, charged with preventing incursions into Chronias and defending against the machinations of fiends. Patron of warden archons.
• Zaphkiel, the Watcher: Ruler of Chronias and leader of the Hebdomad. Only gods and the Hebdomad have seen him without either perishing or being absorbed into the essence of the mountain.

The Six Companions (technically Talisid and the Five Companions) are the leaders of the Guardinal races.

• Talisid, the Celestial Lion: Leader of the companions for several millenia, most powerful of the leonals.
• Sathia, the Sky Duchess: Representative of the avorals and patron of sculptors and painters.
• Manath, the Horned Duke: Representative of the cervidals and newest member of the Companions.
• Vhara, Duchess of the Fields: Representative of the equinals.
• Kharash, the Stalker: Paragon of lupinals and Talisid's best friend.
• Bharrai, the Great Bear: Matriarch of the ursinals and teacher of magic.

The Court of Stars is the smallest of the archangel groups, and represents the three leaders of the Eladrin race in the Great Wheel cosmology:

• Morwel: Queen of the Eladrin
• Faerinaal, The Queen's Consort: Master politician and shrewd judge of character. Tasked with defending the Court of Stars and rescuing captured eladrins as well as providing company and counsel to the queen.
• Gwynharwyf, The Whirling Fury: Patron of barbarians, when not leading good-aligned barbarian hordes against evil she also acts as consort to the queen.

Pathfinder

In Pathfinder, there are a profusion of archangels collectively known as Empyreal Lords; the most powerful members of the various angelic races of Golarion cosmology, the Empyreals are demigods in their own right, and worshipped as lesser deities by the righteous. They are covered extensively in a sourcebook called "Chronicle of the Righteous". The complete list of Empyreal Lords consists of:

Arshea, the Spirit of Abandon. Neutral good Nonbinary angel of Freedom, physical beauty and sexuality. Yeah, the first major one is a genderfluid angel of sexuality, and their doctrine teaches that a person's gender is not defined by biology or society, and is up to each person to figure out on their own. They even encourage their clerics to live life as a different gender to try them out and find out which one is right.

The Black Butterfly: NG female Azata of Distance, silence, and space. The Shadow of Desna (the Chaotic Good goddess of Dream who protects the planet from Cthulhoid horrors). The Black Butterfly resembles a black shadowy humanoid with butterfly wings. She patrols space and fights against the Dark Tapestry (The evil alien empire in the Pathfinder verse).

Dammerich, the weighted swing. Lawful Good Archon of executions, judiciousness, and responsibility. He understands that sometimes evil needs to be destroyed, but it is never done lightly, and consoles executioners that their job is a necessary one to ensure peace (although it is a somber and joyless one).

Ghenshau. Lawful Good Archon of Ignorance, Placidity and Simplicity. Once he was a workaholic who tried to figure out how the entire universe worked, but eventually realized it was futile and gave up, learning how to just accept things as they are and enjoy the simple things in life. He and his followers believe that unnecessary complications can distract people from doing whats right, and while such things are unavoidable sometimes you should sometimes just take a step back and relax. He kind of feels like a character who promotes self care and trying not to get worked up about things, but it doesn't come across (Not helped that his obedience basically involves destroying a book, which rubs some people the wrong way).

Irez: NG Agathion of cards, scribes and spells. She understands the importance of runes and magic, and is worshiped by card readers and gamblers. She looks like a winged Naga draped in scrolls.

Korada: NG Agathion of foresight, forgiveness and peace. A peaceful monkey martial artists, he is frequently worshiped by people who lived lives of imbalance and hardship and are seeking peace and redemption, as well as people facing tough moral choices and villains wanting to turn good.

Olheon: LG Archon of Deservedness, Nobility and rulership: A 16 foot tall woman made of gold. She can knows the lineage of every noble, and she judges the passage of every dynasty and rulership, be they through peaceful or violent means. She hates tyrants and weak or ignorant rulers, and she works through her agents to teach those who can be saved and punish those who can't.

Ragathiel: LG Angel of Chivalry, Duty and Vengeance. The son of the Archdevil Dispater and a Demigoddess from the elemental plane of fire named Feronia, Ragathiel proved his allegiance to Heaven by waging countless battles against Hell, including losing his wing to his dad, destroying an Infernal Dukes fortress, and slaying Typhon, the Previous Lord of the first. He is the ideal of chivalrous Knights and Paladins. Basically if you're playing a stereotypical Paladin and you're dedicated to an Empyreal Lord, its probably this guy.

Shei: NG Agathion of Age life and self actualization. The Ibis Matron, Shei teaches the joy of self actualization through quiet contemplation, helping the community, and the beauty of every day living. She teaches that every stage of life is important, and she bears judgement on those who force others to be something they're not, corruptors, and undead who drain life force or cause premature aging. She also basically looks like a female Thoth with an Ibis head.

Tanagaar: LG Archon of Owls, Night and Watchfulness. Tanagaar is a 14 foot tall Owl who watches the night with unblinking eyes on the lookout for evildoers trying to hide in the shadows. His worshipers include night guards, lookouts and forest wardens. He despises poachers, although if its done out of hunger and desperation his followers will likely give a stern warning and maybe try and help the poacher out. Those who use cruel hunting tactics get no mercy. He's also known to help out guards who are being overwhelmed by invaders.

Vildeis: LG Angel of Devotion, Sacrifice and Scars. Another contentious figure and maybe the most extreme character in all of Pathfinder. Vildeis gouged out her own eyes rather than look upon a universe that has evil in it, and she spends every waking moment fighting evil as she travels around. So she's basically covered with scars. She demands her followers do the same, giving up everything to go out and fight evil for no reward. Basically the Pathfinder equivalent of Ilmater.

Zohls: LG Archon of Determination, Investigation and Truth. She appears as a conservatively dressed beautiful woman with wings of Parchment. Zohls revels in unraveling mysteries, and shedding light on obscured events. She is worshiped by investigators and researchers, and her minions often drop them little hints and evidence to help them. She despises those who hide criminal acts and those who conceal knowledge.