Rave, Nanatsu no Taizai Recommendations
Taking place in a fantasy world, both series follows an adventurous tone with its main cast of characters. The main male protagonist from both series are selfless, courageous, is always on the lookout for a challenge. During their adventure, they encounter many friends, allies, and enemies. They also develop a deep relationship with the main female protagonist as well. Furthermore, both female protagonist has secrets of their own as we learn more about them throughout the story. Expect high amounts of fantasy and shounen-style battles.
Boy meets girl, they start traveling together, they meet other friends who join their group along the way. Magic, sword fights, hinted romance between said boy and girl. I could go on, but just know if you like Nanatsu no Taizai, you'll enjoy Rave as well.