If you loved the epic road trip vibes and brotherhood themes of 'Final Fantasy XV', you might enjoy 'The Name of the Wind' by Patrick Rothfuss. It's got that same mix of adventure, deep lore, and emotional bonds, though it leans more into fantasy academia. The protagonist, Kvothe, has that Noctis-like charisma—flawed but magnetic.
For something grittier, try 'The Blade Itself' by Joe Abercrombie. It’s darker than FFXV, but the camaraderie among the characters feels just as real, and the world-building is immersive. If you’re after stunning visuals in prose form, 'The Stormlight Archive' by Brandon Sanderson delivers landscapes that feel like they’d fit right into Eos.