There are many good cartoons that you can refer to: Attack on Titan: A very popular Japanese anime about humans fighting against giants to protect their walls. 2 Your Name: A very touching Japanese animated film about two young people who swap bodies through dreams and experience a magical adventure. 3 Demon Slayer: A popular Japanese anime about a young man who fights demons to save his family. 4 Sword Art Online: A very popular Japanese anime that tells the story of a virtual reality game where players need to fight and adventure to level up. 5 Naruto: A very popular Japanese anime about a young man who struggles to become a Naruto. These are some very popular cartoons that I hope can help.