 If you liked
Yasashii Sekai no Tsukurikata
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 ...then you might like
Denpa Kyoushi
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Both are about genius researcher who's being a teacher. He privately help his students to confront their life problems. Both have some subtle-harem situation and light-hearted school settings. Denpa Kyoushi is more sol-comedy oriented, while Yasashii Sekai is more romcom-drama oriented
Both manga series' main protagonist has genius intellect but gets caught into situations with other students in his class after becoming a professor. They have a lighthearted background present and takes place in a school life setting.
Both series has humorous dialogues and adapts more of a slice of life theme with no direct storyline.
Both manga has great artwork and drama with some inklings of romance.