Slayers, Kono Subarashii Sekai ni Shukufuku wo! Recommendations
Same kind of humor, in a medieval fantasy world with swords and magic.
Comedy adventures shows in a fantasy setting. Neither show ever takes itself too seriously. Both have a cast of four very likable and often incompetent characters.
Both series are comedic fantasy shows about an unorthodox adventuring party getting up to hijinks and parodying others of their ilk.
Both series poke fun at fantasy clichés and feature a delightful cast of oddballs.
While Slayers is not as raunchy as Konosuba, chances are if you like one, you'll probably like the other.