A Guide to the Guides of Hell

Finding info on the nine layers of Hell is a bit tedious. Here's what I've come up with so far (so its a work in progress), while I was trying to dig up info for this publication: To Hell With You.

*Asterisks indicate novels, the rest are D&D publication.

Specific Layers

1.  Avernus
• Elminster in Hell (novel)
• Well of Worlds (Planescape - ADD 2e)
• Descent into Avernus (5e)
• Fire in the Blood* (a small scene in Avernus, with the party interacting with Tiamat).
2. Dis
• Fires of Dis (ADD 2e)
3. Minauros
4. Phlegethos
• The Adversary* (a couple minor descriptions)
5. Stygia
• A Paladin in Hell (ADD)
• The Shield of the Weeping Ghosts*
6. Malbolge
• Brimstone Angels*, Lesser Evils*, The Adversary*, Fire in the Blood*, Ashes of the Tyrant, and The Devil You Know* (all of the Brimstone Angels novels)
7. Maladomini
8. Cania
• Shadowstorm* and Godborn* (Erevis Cale novels)
9. Nessus 

All Layers

• Guide to Hell (ADD)
• Manual of the Planes (ADD)
• Faces of Evil: The Fiends (Planescape - ADD 2e)
• Planes of Law (Planescape - ADD 2e)
• Planescape Campaign Setting (Planescape - ADD 2e)
• The Planewalker's Handbook (Planescape - ADD 2e)
• Fiendish Code II - Tyrants of the Nine Hells (3.5e)
• Manual of the Planes (3.5e)
• Dungeon Master's Guide (3.5e)
• Manual of the Planes (4e)
• Dungeon Master's Guide (5e)
• Mordenkeinen's Tome of Foes (5e)
• Dragon Magazine #28. The Politics of Hell.
• Dragon Magazines #75 & 76 (and republished in Dragon Magazine #400). The Nine Hells
• Dragon Magazine #223. The Lords of the Nine.
• Pipyap's Guide to the Nine Hells (DDAL00-11)

Honorable Mentions 

• Hellbound: The Blood War (ADD). Discussion on the Blood War but no significant details on hell.
• Blood Wars (card game)
• Dragon Magazine #120. Dining Out in the Hells.
• Dragon Magazine #300. Hellish Fangs on Abyssal Wings.
• The Harrowing of Hell (DRW08) occurs in Avernus and Nessus
• Season 9 of Adventure League occurs in Avernus
• Infernal Encounters (DDAL00-12) includes numerous encounters in Hell

Here's my own homebrew version of Baatezu hierarchy.