If you liked
Kami nomi zo Shiru Sekai
|
...then you might like
Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai
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The overall idea/theme of our protagonist overcoming supernatural things pertaining to a girl is present in both stories. The key difference is that the Bunny Girl Senpai protagonist has to solve the problem the girl faces, whereas the TWGOK MC has to solve these 'misgivings' through a kiss and romantic means (to be fair, getting there entails going through the same 'solve her problems' means).
If you liked
Densetsu no Yuusha no Densetsu
|
...then you might like
Rokudenashi Majutsu Koushi to Akashic Records
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Lazed magician protagonist who is more powerful than meets the eye. (they even look similar, to be frank) Similar setting, a world of magic; also, technologies seem to be on the same level. etc.
If you liked
Ookami to Koushinryou
|
...then you might like
Maoyuu Maou Yuusha
|
Both series are based around romance between a woman of a separate race than the MC. In both series, economics is a key part of the story. They both explore technological advancements. Similar plot.
If you liked
Kaze no Stigma
|
...then you might like
Densetsu no Yuusha no Densetsu
|
Well, the concept of Stigma. Focus on eyes and power surrounding eyes. Same 'feel'. Same MC character 'feel'. Similar plot -- particularly MC's 'defection' botharedank