 If you liked
Blood Lad
|
 ...then you might like
Log Horizon
|
Both anime feature a "Highly intelligent, plans everything that's happening, everything everyone does is part of his plan and benefits him" type of character.
In Log Horizon, it's the main character: Shiroe
In Blood Lad, he's only a support character: Braz D. Blood
Lastly, you could say Braz is basically a vampire version of Shiroe. The way they are drawn is extremely similar. Same glasses, nearly the same hair, similar height, etc.