There are many popular topics in fantasy novels. The following are some common hot topics: Magic and the Magic World: Magic and the Magic World are one of the hot topics in fantasy novels, including magical spells, magical items, magical creatures, and so on. 2. Adventure and exploration: Many fantasy novels have adventure and exploration plots. The protagonists often take risks in the mysterious world to find treasures, defeat evil forces, and so on. Vampires, zombies, and monsters: These elements often appear in fantasy novels, including vampires, zombies, monsters, and so on. They often play important roles. 4. Otherworld travel: In fantasy novels, the protagonist often travels to another world, such as another world, Norse mythology, Greek mythology, and so on. 5. Combat and combat system: Fantasy novels usually contain many combat scenes. The protagonist often fights with various monsters and enemies, so combat and combat system are also one of the important elements of fantasy novels. 6. Growth and Change: In many fantasy novels, the protagonist has a process of growth and change, from weak to strong and gradually becoming a real hero. History and Mythology: Fantasy novels can also contain elements of history and myths. The protagonist can travel to ancient or mythological worlds to explore mysterious stories. These are some of the most popular fantasy novels, and of course, there are many other popular ones.