If anyone knows of more quests to add to this, please let me know:
The Grey Company Rep
500: An Outstretched Hand -- Repeatable (Echad Saeradan)
700: Black Flames (Echad Dagoras)
500: Midnight Hunters (Echad Dagoras)
700: Uniformity (Echad Dagoras)
Total: 2400/day
Algraig, Men of Enedwaith Rep
700: Dark Spirits of the Windfells - Repeatable (Gaver Cadlus)
500: Marauders of Nan Laeglin (Lhanuch)
700: Protecting the Herd -- Repeatable (Uth Cadlus)
700: Shadows of Fear -- Repeatable (Gaver Cadlus)
Total: 2600/day
No Rep
Crumble the Support (Nar's Peak)
Dangerous Quarry (Nar's Peak)
Gunnberg's Folly (Nar's Peak)
Miraculous Growth -- Repeatable (Maur Tulhau)
Nar Sends His Regards (Nar's Peak)
Reducing the Threat -- Repeatable (Echad Idhrenfair/Maur Tulhau)
Relics of the Fallen (Nar's Peak)
Stoors for the Winter -- Repeatable (Maur Tulhau)
The Bigger Ones (Nar's Peak)
The Call of Our Fathers (Nar's Peak)
The Clutch Collapses (Nar's Peak)
The Grey Company
700: Feeding the Company (Echad Dagoras) *says 'If you accept this quest, you will not be able to take the quest A Matter of Doubt', which leads to your posted Protecting the Heard Algraig rep quest
I highly recommend following the Algraig rep line, there are far fewer quests granting that rep.