Epic fantasy series worth the commitment
Long series I actually finished, with an honest note on what each one costs you.
The Lord of the Rings
Tolkien. Still the one. The middle book drags and the ending earns it back.
Earthsea
Le Guin. Six slim books that say more about power than most doorstops.
Realm of the Elderlings
Robin Hobb. Sixteen books about one man being let down. Bruising, and worth it.
The First Law
Abercrombie. Trilogy plus standalones; nobody grows, and that is the argument.
The Broken Earth
N. K. Jemisin. Three books, three Hugos, and a narrator who explains herself.
Malazan Book of the Fallen
Erikson. Ten books that explain nothing for a thousand pages. Then it clicks.
The Book of the New Sun
Gene Wolfe. Four books, a narrator you cannot trust, a reread that differs.
The Stormlight Archive
Sanderson. Enormous, unfinished, and the clearest magic ever put on paper.
The Wheel of Time
Jordan, finished by Sanderson. Fourteen books: skim the middle, stay for three.