If you liked
Overlord
|
...then you might like
Sin: Nanatsu no Taizai
|
Both Sin and Overlord deal with a prideful and powerful main character who cautiously plan out their next move while they try and usurp or take over the world which they've been thrown into. Along the way they become more knowledgeable of themselves and the world, and they then continue to use that information to progress their own goals. The only big difference is that Overlord starts with a bunch of supporting characters, whereas Sin doesn't.
If you liked
Outbreak Company
|
...then you might like
No Game No Life
|
Outbreak Company also has it's main character work on establishing a friendly relationship between differing races in another world through unconventional means. They also share the same undertone which involves looking into other characters' perspectives to figure out why and how they will respond to situations.