Ch25, alchemist exiled for research food production inatead of war magic. He goes to farm in a vallage in Beastmen kingdom instead, and starts solving their food problems
Ch12, alchemist exiled finds her childhood friend is a noble. Mc works for his territory to solve their problems
Ch42.3, noble exiled for having production magic. He manages a village and uses his powers for village development
Ch175, noble has eyes of appraisal, uses it to recruit talent. The world is a fantasy world with a sengoku jidai style political scene.
Ch28, noble exiled to be lord of a remote village. Mc uses their earth magic to build houses, improve fields, and as defense
Ch76, noble is blessed by all the gods to stop the evil god. He is a second son, but with his op abilities, hes made a noble in his own right, given 5? Fiances, and made lord of a town with a large amount of adventurers
Ch24, exiled prince is a reincarnated hero/sage. He gets sent to a border territory as its lord. He wants to fail so can seem incompetent to retire.
Ch29, younger noble son has previous life memories, uses eart magic and knowledge to build roads, drains, indoor plumbing
Ch53, prince exiled to be lord of a wasteland, he uses his crafting magic to develop a village
Ch63, demon lord introduces farming so the demons dont have to invade human lands
Kaikosareta Kyuutei Renkinjutsushi wa Henkyou de Dai Nouen wo Tsukuriageru - Sokoku wo Oidasareta kedo, Saikyou Ryouchi de Slow Life wo Ouka suru