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Rainforest
I would recommend Tamora Pierce's novels to anybody. She's famous for her fantasy realms and strong female characters.
She's written multiple series that all tie into each other, but they can still be read independently without having to read every single series in the book, as they refer back to previous characters and events.
The series (that I have read, I believe there are more) are as follows:
Song of the Lioness (Alanna: The First Adventure, In the Hand of the Goddess, The Woman Who Rides Like a Man, Lioness Rampant)
The Immortals (Wild Magic, Wolf-Speaker, Emperor Mage, In the Realm of the Gods)
Protector of the Small (First Test, Page, Squire, Lady Knight)
Daughter of the Lioness (Trickster's Choice, Trickster's Queen)
The Circle of Magic (Sandry's Book, Tris's Book, Daja's Book, Briar's Book)
The Circle Opens (Dance Magic, Street Magic, Cold Fire, Shatterglass)
(There's another series after The Circle Opens called The Circle Reforged, but I can't remember the name of the books in it.)
Beka Cooper (Terrier, Bloodhound, Mastiff)
I would also recommend the Discworld novels by Terry Pratchett. There are a lot of them, so there are guides all over the Internet as to how to determine reading order, but the most popular mini-series in the overall cluster of books are the ones featuring Death and the ones featuring the Ankh-Morpork City Watch. They're satirical fantasy and very well-written.
I also enjoyed The Ranger's Apprentice series by John Flanagan. It's fantasy but there isn't much in the way of magic or spell-casting - there's a sorcerer in the fifth book, but he uses pyrotechnics and stage magic instead of actual arcane spells. It follows a young boy named Will who gets taken under the wing of a Ranger, a type of stealthy scout/archer, named Halt. The books are full of adventure and very little sappy romance, and the world-building is great.