If you liked
Shingeki no Kyojin
|
...then you might like
Aldnoah.Zero
|
This show starts off a little more slowly compared to Attack on Titan but as it progresses, the pace of the story starts to kick in and it really reels you in and that's how it is similar to Attack on Titan. The soundtrack is pretty similar as well - fighting scenes, lots of death and twists and turn - humanity fighting against one another - pretty similar to AoT if you ask me. Both are fast paced, interesting and keeps you on the edge of your seat!
If you liked
Death Note
|
...then you might like
Code Geass: Hangyaku no Lelouch
|
This seems to be a pretty common comparison - probably because Light and Lelouch are practically the same character. Both shows feature quite a bit more intellectual sparring than your typical shounen fare, and both main characters have very similar personalities (they're closer to being villains than heroes) and abilities (ridiculously powerful but with prominent weaknesses that require careful planning to circumvent).