I'd recommend 'Tower of God'. It has an intricate world-building and intense action sequences. The plot is full of surprises and the art style is top-notch. Also, 'Solo Leveling' is a must-read. It has a unique power system and the protagonist's growth is really engaging.
You might want to try 'Attack on Titan'. It offers thrilling action, a complex world, and thought-provoking themes. The action sequences are especially well-drawn and intense.
One great action novel is 'The Hunger Games' by Suzanne Collins. It has intense battles and a thrilling plot as Katniss Everdeen fights for survival in a deadly arena. Another is 'The Da Vinci Code' by Dan Brown. It's full of action-packed chases and mystery-solving as the protagonist races against time to uncover secrets. Also, 'Jurassic Park' by Michael Crichton is an exciting read with the action of dinosaurs running amok.
Check the reviews. Online platforms like Amazon or Goodreads have reviews from other readers. If a book has a lot of positive reviews, it's likely a good choice. Pay attention to what readers specifically liked about the action in the novel, such as fast - paced plots or interesting characters.
One popular ability manhwa fanfiction is 'The Awakened One's Journey'. It focuses on a character who discovers a unique ability and has to navigate a dangerous world. Another great one could be 'Ability Wars' which has intense battles between characters with different powers. And 'Mystic Abilities' is also interesting as it delves into the origin of these special abilities in the manhwa world.