Bucchigiri?!

Both have/are: - anime originals - tons of ikemen - stylish character design - underground competitions - fast-paced - bright, loud, crazy, funky vibes 

Both main characters goes to a well known delinquent highschool where many different gangs are formed. Many people climb to get to the top and develops unexpecting friendships along the way.  

Nanbaka and Bucchigiri give me similar vibes. Both have lots of guys and lots of fights. Both have colorful character designs. Main difference is, Nanbaka sets on a prison, while Bucchigiri sets on schools. 

Same great characters - same quality in comedy and action - same great animation - same Similarity in power and school life if you like this one then Beelzebub is a MUST 

Both are animes that revolve around fighting, and also both have mcs that do not know how to fight. The biggest difference is that the Bucchigiri MC is an insufferable simp that will do anything for a girl that doesn't care even the slightest bit for him, while the Viral Hit MC is a loser that gradually grows and tries to overcome his plight. Be ready to see the MCs take a lot of hard losses though. Hard stuff to watch, but its worth it in the end...sort of. 

I don't know how to explain it, but it just gives off the same vide I guess. 

While Kenichi doesn't have the supernatural aspect of a genie type character granting the main character strength, Bucchigiri and Kenichi are very similar in other ways. Both protagonists start of as ordinary characters who are seen as weaklings by others. Both at some point get beat up by tougher characters and want to better themselves. Once they gained a measure of strength and showed it off by beating a tough opponent, they eventually become the target of youthful delinquents who crave battle. These delinquents either want to recruit or crush them. Both series have an array of oddball antagonists. 

A similar balance of gag comedy and fighting and spirit 

The two main characters between Takechimi and Arajin are so annoyed, tired, saddest, crybaby, conquered by the hero, never give up, and but also protect their friends when they are hurt. 

- Both share similar superpower abilities (Stands/Honki people) - Vibrant and bold colors and animation - Stories in both center around high school and there's delinquents  

Wacky school setting with yanki and a lot of stuff inspired by the shows from the 80s and 90s. 

-Both have that Middle Eastern/Arab aesthetic. Though Bucchigiri?! dosen't explicity use any of the Middle Eastern mythology or naming convention. -Both have lots of fights. -They both feature a young protagonist. -Both have colourful character designs. 

I see a few parallels such as when the main character of Bucchigiri throws a punch, it reflects Yusuke from Yuu Yuu Hakusho. Also deals with delinquent type characters in school. The overall theme of both is about standing up against what could be stronger than you in order to protect your friends and prove yourself.