Nisemonogatari

Similarly trippy styles of direction. Protagonists who mess with the supernatural in somewhat serious ways. Fanservice. Fanservice. Fan. Service. 

Both have the same Atmosphere,comedy and randomess.both male leads,Koyomi and Kou are practically the same and have to deal with weirdos around them plus they got the same Seiyuu.Arakawa uses aliens as the source while Monogatari series is using ghosts,vampires etc and both are by SHAFT  

Similar older brother themes. As an older brother myself, I can relate heavily to both of these. Both of these (and Bakemonogatari) are in my all time favorite shows. 

There is some similar humor and some similar use of abrupt changes in animation style to show changes in characters' emotions. Both are not particularly plot-based, although Nisemonogatari has some plot, while Nichijou has no plot whatsoever. Both are pretty strange in general.  

While having witty humor, both are artsy, dialogue driven and character focused. 

Similar: The pacing of action. The use of color. The attitude of the main character. The main character: A bewildered male surrounded by a bunch of crazy chicks. Style. The psychotic little inserts, artfully translating the moodswings of the characters. I Love both.  

Both have a inhuman as the main protagonist. and both tells about the daily lives of the main protagonist,despite of them being inhuman 

Comedy, pacing, and the overall fun in a single episode, furthermore a character name shinobu and kamiya hiroshi voicing the protag. The resemblance is real. Great adaptation. 

Probably has been said but both deal with Supernatural. With a touch of enjoyable Slice of life and characters with depth, motivation, and complexities to them, both have enjoyable qualities if you are into this type of storytelling or genre. 

The two series share similar art styles and story boarding. The settings of both are also very similar and create very fun and interesting backdrops for the characters to light up and interact in. If you enjoyed one of these you'll most likely find the other enjoyable as well.  

Nisemonogatari's famous toothbrushing scene has a counterpart in Hen Zemi, but with ear cleaning instead. 

If it looks like a duck and quacks like a duck, is it a duck? This question is posed (albeit in different forms) in both Nisemonogatari and Sakurada Reset, which affects their respective characters and overall narrative. 

The animation is top notch. The word play is top notch. But most importantly, it has a lotta good waifus. 

they are different world but the imagination is incredible 

Oresuki has a lot of intrigue and it turns the Harem genre on it's head by making all the characters trying to destroy one another's reputations to try and be who they want to be with. It does have some annoying fan service and a swimsuit episode but I enjoyed it because the characters all felt real with good and bad traits for all of them. If anything at least finish episodes 1-3 for the huge plot twists that blew me away... 

While most comparisons between Penguindrum and Monogatari are among Bakemonogatari, I feel like Nisemonogatari is even closer to Mawaru Penguindrum in that regard. The most obvious part being the focus on sibling relationships, weird fetishitic scenes and a liminal aesthetic. Both also some of the most WTF scenes of all anime. 

-Both Have Fan Service -Both Have Harem -Both Have Good Action -Both Have Dense Male Protagonist 

Nisemonogatari, the hypothetical April fools anime that never was, probably would have been the perfect recommendation for fans of Hentai Prince. Both Nisekoi and Monogatari are high school harems. Nisekoi's plot revolves around the past that none of the main characters seem to fully remember or understand. Monogatari often has supernatural entities that cause unwanted consequences for the protagonist. 

Both involve around folklore and supernatural beings. In fact, the supernatural aspect is smoothly and naturally incorporated into the show. There are humorous contents found in nisemonogatari and noragami. nisemonogatari has more sarcastic and witty dialogue while Noragami depends more on gags. 

Both are swag-filled anime where the MC gets all of his harem in swagtastic ways. 

Both of these series focus on the supernatural and both have some unique ecchi scenes. Yuuko Kanoe and Senjougahara also look similar to some extent. Both are quite recent anime. 

unique, eccentric and lovable characters brought to us by NisioIsin-sensei 

Both animes contain lots of H-material. Although there are no scenes of sex in Nisemonogatari, I can't say for sure which one of them is more obscene. But ecchi genre is not the only thing they have in common. Also, there are two sisters in both these titles, one of wich is sporty and another one is hysterical. Moreover, there are bra size 45 class reps, who have a crush on the main character. If you're not the type of a person, who only admires godlike SHAFT style while watching Nise and doesn't pay attention to the content of the show, you'll like Aki-Sora. If you liked Aki-Sora, you'd better watch Nise ASAP, because it's the same thing plus some humour, plot and godlike SHAFT style. read more 

Both series worked by the studio Shaft. Their unique use of gags and word play are themes of the series that give a different style in anime. Both series also have "romance" although exploited in an unique way. There are also ecchi in both of these series at different turn points.  

Produced by the same studio and directed by the same director. Additionally, they both contain comedy, scenery, and an usual feeling to viewers. Oh not only that but the main male protagonists are similar and contains a lot of humor courtesy of Shaft. Unique series for viewers interested into the works of Shaft. 

Both anime are about the brother and sister relationship. 

Humanization through the use of ambiguity and comedy, with many jokes involving miscommunication and the power of words tl;dr DEEP 

Same show different animation studios. Main character keeps in check with his supernatural harem. However the Kanon girls are unable to measure up in both the brains and body departments. 

Both are heavy on the ecchi specifically with sexual situations. Both have mostly female driven ecchi scenes Both have a large focus of the content on an incestuous relationship between bro x sis -Nise's Art is better. -Nise has a better plot. -No monsters/demons/vamps ect are in Onii-Chan. -Onii-Chan is more focused on comedy than drama.