Utawarerumono: Itsuwari no Kamen, Nejimaki Seirei Senki: Tenkyou no Alderamin Recommendations
Medieval, with a lazy guy who is good strategist.
World setting is quite different, despite other reviews.
Alderamin is a roughly 1860s guns and cavalry world with magic-based technology being the big substitute of gunpowder and steam power.
Utawarerumono on the other hand is set in a japanese sengoku period-like setting with some magic and animal ears on everyone.
Main characters are similar in that they're lazy and good tacticians, but Ikta is the much better one, while Haku compensates with pure charisma and some other weird things that happen.
Alderamin concentrates on tactics with great, easy to follow explanations; every problem has to be countered with a creative solution and it's really fun to watch all
-Both are in medieval time
-Both protagonists are lazy but at the same time are clever
-Both are more realistic than your traditional fantasy (in the sense of weapons)