If you're looking for manga similar to I... Don't Want to Work Anymore. I Quit Being an Adventurer For Good and You Can't Stop Me. (Light Novel), you might like these titles.
In a nameless village at the edge of a certain world: the villagers, instead of drinking normal water, drank water from an elixir fountain. As the result of drinking elixir for a long time, humans evolved to a tribe called elves. They acquired great recovery power and spirit magic. It looked like that the elves were nature-loving, but that was just because they didn’t interact with other villages. Sheila, a girl who started her journey from such a village, knew the fact that her healing magic, which was not considered very good when she was in the village, surpassed the power of the legendary saint. And furthermore, she knew the spirits which were normally summoned in the village were already extinct.
The Guingard Tower; in a world dominated by magic, a child arrives at the doors of this magic academy. His name is Lynn. He is a child slave without money who dreams of a wealthy life. He has neither power nor talent. Besides that, a strong discrimination depending on the status awaits him in the academy to which he has enrolled. Investment techniques, a small amount of money and time, connection with aristocrats… Lynn uses all kinds of wits and runs up the stairs to be a great magician.