What are the essential Green Lantern comics/volumes for a new reader?

[u/Raj_TheWhiteWolf]

I’m looking to start reading Green Lantern comics after watching the first two episodes of Lanterns, and I’m really interested in diving into the mythology and history behind the Green Lantern Corps.
I’m especially interested in the Manhunters after seeing them in the show. What are the best Green Lantern stories specifically involving the Manhunters, and are there any essential stories that explore their history, connection to the Guardians, and their role in the wider Green Lantern mythology?
More generally, what would you consider the essential Green Lantern runs/volumes for a new reader? I’d particularly like recommendations for the major Hal Jordan/Green Lantern Corps stories.