I only did these for the more potentially interesting rogue armies.

Abominations- Self explanatory
Crypt Ghouls
Crypt Horrors
Varghulf

Beast Catchas- Beasts and goblins
Feral Manticore
Feral Bastiladon
Great Eagle
Razorgor Herd

Bernhoff's Brigands- Bandity units
Spearmen
Bleakswords (maybe some dark elves joined this pack of brigands, just thought it'd be fun)

Boneclubbers Tribe- Clubby units
Norscan ice trolls once they're back
Trolls
Giant
Chaos Giant

Celestial Storm- Lizardmen by default, but decided to spice it up a bit based on the name so it's not so boring
Celestial Wizard
Luminark of Hysh
Skink Priest (Heavens)
Damsel (Heavens)
Battle Pilgrims

College of Pyrotechnics- Boom
Master Engineer
Irondrakes (Trollhammer Torpedo)
Gyrobomber
Helblaster Volley Gun

Vashnaar's Conquest- Dark Elf Chaos lord
Harpies
Chaos Knights
Chaos Feral Manticore or Feral manticore (or both?)

Gerhardt's Mercenaries- Could be basically anyone or anything that likes money/stuff, I think they have a lot of potential to be incredibly versatile
Shades
Chaos Marauders
Cold One Knights
Empire Knights
Knights Errant

Jerrod's Errantry Army- Crusader army I suppose
Questing Knights
Paladin
Warrior Priest

Morrslieb's Howlers- Insane units, so much potential here too
Plague Monks
Death Globe Bombardiers
Night Goblins (Fanatics)
Night Goblin Shaman
Squig Herd
Witch Elves
Zombies
Vargheist
Terrorgheist
Dryads

Pirates of Trantio - Pirates from Trantio
Black Ark Corsairs
Black Ark Corsairs (Handbows)
Nasty Skulkers (Feel like they're piratey)

The Scourge of Aquitaine - Perhaps Ironically the Red Duke's army... super cavalry focused (want to keep that theme, but give more options in terms of cav)
Move the Red Duke here maybe? Make the proper LL for Mousillon? Might be a long term project or just way too much work in general.
Black Knights
Vampire heroes
Knights Errant
Hexwraiths
Grail Guardians

Stuff-Snatchers - Robbers, currently all goblins/skaven but there's certainly other possible thieves!
Peasant Mob
Peasant Bowmen
Chaos Marauders
Ungor Spearmen Herd
Ungor Herd
Ungor Raiders

Vaul's Expedition - Seems to be a High Elf expiditon, but the name is interesting, what if it could be worshippers of vaul in general? Makes it far more interesting as we can include Wood Elves and potentially even Dark Elves.
Bleakswords
Darkshards (Shields)
Reaper Bolt Thrower
Eternal Guard (Shields)
Wildwood Rangers
Glade Guard (Starfire Shafts)
Archers (Light Armour)
Silver Helms (Shields)

Hunters of Kurnous - Self explanatory, primarily a Wood Elf god, but High Elves and Dark Elves also worship him quite often, so let's expand the roster just a little bit with units that kind of match his theme.
Ellyrian Reavers
Ellyrian Reaver Archers
Shades
Dark Riders (shields)
Wardancers
Deepwood Scouts