If you liked
Free!
|
...then you might like
Hoshiai no Sora
|
These two sports shows follow the players and their lives more than the games. I would call these sport "dramas" more than sports animes. They focus on the individual players and the relationships they create with their teammates. Free! is about a swimming team and Stars Align is about a middle school tennis team.
If you liked
Death Note
|
...then you might like
Code Geass: Hangyaku no Lelouch
|
Lelouch and Light are both anti-heroes who will do anything to achieve their goals. They both take on an alternate personality in order to conceal their identities as they work to accomplish their goals. These anti-heroes end up becoming the thing they fear most.
If you liked
Cowboy Bebop
|
...then you might like
Black Lagoon
|
Both animes follow a crazy crew and the adventures they take. Black Lagoon company takes on jobs to smuggle and transport illegal goods, and the Bebop crew is a band of intergalactic bounty hunters.
If you liked
Kuroko no Basket
|
...then you might like
Haikyuu!!
|
Both are amazing sports animes that follow a prodigy and character who is highly specialized in one form of the sport (Hinata can jump and Kuroko can pass). These shows are full of great sporting matches, diverse teams, and great friendships.