If you liked
Ookami to Koushinryou
|
...then you might like
Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai
|
The appeal of both series come from the back-and-forth dialogues between the main couple. Both are Romances with a twist. Spice and Wolf has a merchant trying to trade efficiently (it's much more fun than it sounds) and Bunny girl senpai has characters dealing with a fictional disease called puberty syndrome (it's much more fun than it sounds). Both are light novel adaptations.
If you liked
Karakai Jouzu no Takagi-san
|
...then you might like
Kaguya-sama wa Kokurasetai: Tensai-tachi no Renai Zunousen
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The main duo in both anime try to outsmart each other. Both are Romantic Comedies. While Takagi-san is more grounded and cutesy, Kaguya-sama is much more dramatic. (I just noticed that both have the name of lead female in their title).
If you liked
Serial Experiments Lain
|
...then you might like
Ergo Proxy
|
Both series have a sense of mystery around them and may require more than one sitting to fully understand.
If you liked
Tonari no Seki-kun
|
...then you might like
Karakai Jouzu no Takagi-san
|
Similar comedy. Even concept is a bit similar. A boy and a girl who sits on back bench in school teasing each other.
If you liked
Jigoku Shoujo
|
...then you might like
Death Parade
|
Both have a similar episodic concept where you meet new people with their problems and they are supposed to make a decision in the end which reflects darkness in their souls.
If you liked
Psycho-Pass
|
...then you might like
Death Parade
|
Psychological genre Defines a system and then explores it. Both interesing Concepts and I think if someone likes one, he/she would like the other. Death Parade lacks action though.