Tekkon Kinkreet, Omoide no Marnie Recommendations
Both are coming of age stories, focusing on the friendship between the two main characters, with the difference being that the main characters are both boys, while the main character of Omoide no Marnie are both girls. Friendship helps the main characters of both anime overcome their problems, as well as learn more about themselves. Both are character-driven stories, featuring great animation and beautiful backgrounds. The only different is that Tekkon Kinkreet has more action.