If you liked
Hataraku Maou-sama!
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...then you might like
Lv1 Maou to One Room Yuusha
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After losing to the hero, the powerful demon reappears in the modern world after a number of years but now they're powerless and they learn the complexities of mundane, everyday life.
They're both comedy anime that doesn't take it self too seriously, featuring a lovable former demon lord.