You know what fantasy writing needs? Working class wizards.
A crew of enchanters maintaining the perpetual flames that run the turbines that generate electricity, covered in ash and grime and stinking of hot chilies and rare mushrooms used for the enchantments
A wizard specializing in construction, casting feather fall on every worker, and enchanting every hammer to drive nails in straight, animating the living clay that makes up the core of the crane
An elderly wizard and her apprentice who transmute fragile broken objects. From furniture, to rotten wood beams, to delicate jewelry
A battle magician, trained with only a few rudimentary spells to solve a shortage of trained wizards on the front who uses his healing spells to help folks around town
Wizarding shops where cheery little mages enchant wooden blocks to be hammered into the sides of homes. Hammer this into the attic and it will scare off termites, toss this in the fire and clean your chimney, throw this in the air and all dust in the room gets sucked up
Wizard loggers who transmute cut trees into solid, square beams, reducing waste, and casting spells to speed up regrowth. The forest, they know, will not be too harsh on them if the lost tree’s children may grow in its place
Wizard farmers who grow their crops in arcane sigils to increase yield, or produce healthier fruit
Factory wizards who control a dozen little constructs that keep machines cleaned and operational, who cast armor to protect the hands of workers, and who, when the factory strikes for better wages, freeze the machines in place to ensure their bosses can’t bring anyone new in.