I'm not really one to recommend stuff, as everyone does have different taste, but have you guys watched/ heard of an anime called 'run with the wind' or 'kaze ga tsuyoku fuiteiru'. I just finished watching it today and it was amazing! A visually stunning anime (which you'd enjoy even more, if you're into Haikyuu's interesting art style), with well-developed characters, who you'll find are quite relatable. Every section of the story never dragged on longer than it should have, each with the perfect amount of seriousness and comic relief. This anime's OST is great too - it was created by the composer, Yuki Hayashi, who had also composed the OSTs for Haikyuu, BNHA, Trickster and Junji Ito's collection. Despite the slight repetition in his songs, they're almost impossible to dislike. The anime is pretty motivating too, and I'm all for the promotion of physical activity lol! Anyway, if you guys get a chance, you should totally check it out - it hit the top of my 'favourite anime' list, alongside 'psycho pass' and 'terror in resonance'.