 If you liked
Majin Tantei Nougami Neuro
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 ...then you might like
Mahoutsukai no Yome
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Both series have a similar main character dynamic. Neuro and Elias are both monsters who don't understand humans very well and need help to learn to do so. They both have a young female partner to teach them about the human world. Yako and Chise are both strong female leads who love to help others. The shows also share a similar main villain. Kaitou X and Cartaphilus are basically the same character.
The settings and genre of the shows are very different, but if you like the characters in one, you're likely to like them in the other too.