Ginga Eiyuu Densetsu, Nejimaki Seirei Senki: Tenkyou no Alderamin Recommendations
Ikta Solork, the protagonist of Alderamin is VERY similar in personality and behavior to Yang Wen-Li of Legend of Galactic Heroes. Both are lazy geniuses who never wanted to be part of military and who also think outside the box, lack any sort of social tact, indulge in vices and present a political viewpoint that has become controversial in their nations.
Both Shows are war-dramas with future-narrator chronicling lives of people destined to play a major role in their nations history.
The protagonist of Alderamin, Ikta, is quite obviously modeled after one of the leading characters of LOGH, Yang Wen-Li.
A lazy guy who hates war and never wanted to become a soldier but is an absolute strategic genius that is revered for his talents and does what he has to do, they also both hold subversive political beliefs.