Here are my favorite picks for anime like Zetman. Keep in mind the list is in no particular order. Enjoy the recommendations!
Ganta is the only survivor after a mysterious man in red slaughters a classroom full of teenagers. He’s framed for the carnage, sentenced to die, and locked away in the most twisted prison ever built: Deadman Wonderland. And then it gets worse.
At Deadman Wonderland, convicts are forced into brutal deathmatches for the amusement of the masses, the cheers of the crowd drowning out the screams of the dismembered. Even when Ganta befriends Shiro, an unusual female inmate, his dark fate crushes all hope—until he discovers the strange ability to wield his spilled blood as a weapon. Ganta learns his new skill might be related to the murderous man in red and uncovers disturbing secrets that could expose those who stole his freedom. He’s determined to see justice served—but first he’ll have to fight for his life in a prison that holds a million ways to die. (Source: FUNimation)
Sho Fukamachi, a normal teenager accidentally found an alien object called Unit and thus, changed his life forever. The Unit bonded with Sho, resulting in an incredibly powerful life-form called Guyver. With this great power, Sho battles the mysterious Chronos organization and it’s Zoanoids, in order to protect his friends and his world. Unknown to Sho, the battle against Chronos will lead to the discovery of the origins of human, their destiny, and the Creators… (Source: ANN)
Sternbild City is home to people called “Next,” who use their special abilities to protect the people as superheroes. These heroes solve cases and save lives so they can wear sponsor logos or acquire “hero points.” Their activities are documented on the popular program “Hero TV,” which picks the “King of Heroes” in a yearly ranking. The veteran hero Wild Tiger has always preferred to work alone, but now he’s been assigned the rookie Barnaby Brooks Jr., who has a different perspective on being a superhero. (Source: ANN)
Otomo City: where freedom and justice have atrophied to the bone; where conspiracy rules the day and death stalks the night… Death in the form of the Skull Man, a literal Grim Reaper whose skeletal grin presages grisly mayhem and murder, even to the monstrous mutants that haunt the city’s underworlds!
To investigate a bizarre slaying, journalist Minagami Hayato and photographer Kiriko Mamiya must stalk this ultimate predator, through a festering cadaver of a city where the corruption flows in rivers as deep and foul as the sins of the reigning elite, and unearth a secret so shocking that an entire city has been turned into a tomb to contain! In a nightmarish necropolis where nothing is as it seems, vengeance comes in the form of a living Death’s-Head! (Source: Sentai Filmworks)
A shinigami, as a god of death, can kill any person—provided they see their victim’s face and write their victim’s name in a notebook called a Death Note. One day, Ryuk, bored by the shinigami lifestyle and interested in seeing how a human would use a Death Note, drops one into the human realm.
High school student and prodigy Light Yagami stumbles upon the Death Note and—since he deplores the state of the world—tests the deadly notebook by writing a criminal’s name in it. When the criminal dies immediately following his experiment with the Death Note, Light is greatly surprised and quickly recognizes how devastating the power that has fallen into his hands could be.
With this divine capability, Light decides to extinguish all criminals in order to build a new world where crime does not exist and people worship him as a god. Police, however, quickly discover that a serial killer is targeting criminals and, consequently, try to apprehend the culprit. To do this, the Japanese investigators count on the assistance of the best detective in the world: a young and eccentric man known only by the name of L. [Written by MAL Rewrite]
The story is set in a fictional Germany and centers around the outbreak of biomechanical creatures named “Demoniacs”, who rise from corpses and attack people mindlessly. The Demoniacs have the ability to merge with most technology including cars and motorcycles, not only gaining control of them but also enhancing their performance greatly. Against them is a group of people known as XAT, Xenogenesis Assault Team, who police these Demoniacs in an attempt to keep the peace and discover the reasons for the “Demoniac” change. All the while, a number of human-turned-Demoniacs appear. Some use their powers for good whilst others for evil. One will rise above all other Demoniacs to become the “Blassreiter”. (Source: Wikipedia)
Kyousuke Hyoubu, an ESPer who was betrayed many years ago, is now one of the most powerful ESPers—and also a fugitive. However, behind that glare lies a kind heart. His main mission is to save ESPers who are mistreated by humans, even if that be by force. Through his methods, he has saved many ESPer lives and gained the loyalty of those he has saved. The name of his group: P.A.N.D.R.A. (Source: ANN)
In this world, humans coexist with demonic predators called Yoma. These demonic beasts feast on human innards and can blend into human society by taking on human appearance. As a counter force, a mysterious organization created half-human, half-Yoma warriors known as the “Silver Eyed Witches” or “Claymores,” after the huge claymore swords they carry. They are detested by humanity however necessary.
The story begins with a young boy, Raki, who has lost everything in a Yoma attack, and the Claymore, Clare, who is generally detested by society. Throughout the series, Clare and Raki show their deeper qualities, powers and Clare’s never ending devotion to the goal she swore to fulfill in her childhood. [Written by MAL Rewrite]
The world of the humans and the world of the demons (youkai) have overlapped one another, leaving humans to walk the streets of life as they normally would, while demons walk, hidden from the naked eye, down the very same streets. A seemingly young woman named Yurine and her servant, the Karas (from the Japanese word for “Crow”), have long maintained order and balance between the overlapped worlds, ultimately keeping the demons from interrupting the lives of humans. However, humans have come to forget and jest at the existence of demons, and no longer understand the privilege it is to live without fear. Disgusted by this arrogance, an old Karas turns his back on the laws he had once upheld, and in his human form, named Eko, he creates an army of Mikura, or mechanized demons, to ready an attack on the human race.
A young man named Otoha inherits the powers of the Karas and takes his place at the side of Yurine, who claims that his soul called out for her while he lived the life of a human. They live in the world of the demons. It is now up to Otoha to prove himself as a Karas, and restore the balance that Eko threatens to upset.
Meanwhile, a superstitious police officer named Sagisaka and his rational new recruit, Kure, follow the trail of the murders dealt by Eko’s Mikura, as well as the trail of a rogue Mikura named Nue. The prophecy unfolds from here into a grave revelation for all in the city. (Source: Wikipedia)
References: MyAnimeList, Wiki, ANN