Here are my favorite picks for anime like Majikoi: Oh! Samurai Girls. Keep in mind the list is in no particular order. Enjoy the recommendations!
Sekirei
Minato Sahashi is extremely intelligent, yet due to his inability to cope under pressure has failed the college entrance exam twice. As a result he has been branded an idiot and loser by many. One day after talking to his yet again disappointed mother he comes into contact with a girl named Musubi who was under attack. The girl runs but takes him with her and soon finds that Minato, while unknown to him, is an Ashikabi, one of the mysterious set of masters that have the genetic trait that can become partners with some of the 108 cute girls, buxom women, and bishōnen called “Sekirei.” The reason for the partnership allows the Sekirei to use all their power to win in the competition held by the mysterious MBI corporation. (Source: ANN)
Baka and Test – Summon the Beasts
The story centers around Akihisa Yoshii, the “baka” of the title. His academy rigidly divides up the student body into classes based on the results of tests. The prodigies are in the A class with reclining seats complete with air conditioning, but Akihisa is in F class, the lowest rung of the school ladder which is furnished only with low, decrepit tables and worn-out straw tatami mats. A girl named Mizuki Himeji is actually one of the smartest girls in Akihisa’s sophomore year, but she had a fever on test day and was pigeonholed into the F class. Besides Mizuki (who Akihisa secretly adores), the F class also has Yuuji Sakamoto, the class president who has been Akihisa’s friend and partner-in-crime since the freshman year.
The school happens to have developed experiments to summon fantasy creatures, and Akihisa decides to rally F class to take on the higher-tiered classes and seize their perks. The F class uses the summoned creatures in an all-out battle for school supremacy. (Source: MyAnimeList)
Medaka Box
Medaka Kurokami is, in the truest sense of the word, perfect. Beautiful, intelligent, and athletic, Medaka’s dream is to make others happy. So when she runs for Student Council President of the prestigious Hakoniwa Academy, winning the election with 98% of the votes is only to be expected.
The very first thing the boisterous new president does is set up the “Medaka Box,” a suggestion box allowing students to submit any kind of request for assistance. Together with the cynical Zenkichi Hitoyoshi, her childhood friend who has been strong-armed into helping, Medaka fulfills these requests at a ridiculous rate. For every job completed, she adds flowers to the student council room, with the aim of filling the entire school. However, the two are about to find out that helping others may be a lot harder than they think as they begin to uncover a devastating plan centering on the academy and even Medaka herself! [Written by MAL Rewrite]
IS: Infinite Stratos
Japan engineered an armed powered exoskeleton “Infinite Stratos” (IS) and it became the mainstream of weapons. Since only women can operate IS, women dominate the society over men. Orimura Ichika is a 15-year-old boy and accidentally touches an IS placed in the IS pilot training school. He is found to be the only man who can operate IS and forced to enter the training school. Ichika’s busy school life surrounded by girls has begun. (Source: MyAnimeList)
Horizon in the Middle of Nowhere
In the far future, humans abandon a devastated Earth and traveled to outer space. However, due to unknown phenomenon that prevents them from traveling into space, humanity returns to Earth only to find it inhospitable except for Japan.
To accommodate the entire human population, pocket dimensions are created around Japan to house in the populace. In order to find a way to return to outer space, the humans began reenacting human history according to the Holy book Testament. But in the year 1413 of the Testament Era, the nations of the pocket dimensions invade and conquer Japan, dividing the territory into feudal fiefdoms and forcing the original inhabitants of Japan to leave.
It is now the year 1648 of the Testament Era, the refugees of Japan now live in the city ship Musashi, where it constantly travels around Japan while being watched by the Testament Union, the authority that runs the re-enactment of history. However, rumors of an apocalypse and war begin to spread when the Testament stops revealing what happens next after 1648. (Source: Wikipedia)
Senran Kagura Ninja Flash
The Hanzo Academy is a prestigious prep school with a secret known only to a select few. Behind its walls is a training course for shinobi; trained spies and assassins that centuries ago had served the shoguns for their political and military needs. Today the tradition continues with five young female trainees with diverse personalities: the care-free Asuka, fierce yet perverted Katsuragi, the sweet and innocent Hibari, stoic and protective Yagyuu, and their mature, class representative, Ikaruga.
Senran Kagura tells the story of these five girls and their secret journey to complete their shinobi training. The journey quickly becomes more complicated than they expect though when a darker, more sinister group of shinobi reveal themselves. Not only do they know of the girls at the Hanzo Academy, but they seem fully intent on and capable of proving themselves to be the superior, modern day shinobi.
Through honing their skills, harnessing the power of their secret scrolls to perform shinobi transformations, and working together as a team, Asuka and her friends must rise to meet this new challenge. Not just for the sake of their training, but for the everything the Hanzo Academy stands for. (Source: MyAnimeList)
Dog Days
Republic of Biscotti faces a predicament by the invasion of Galette Leo Knights. In order to save the country, Princess Milchore summons a “hero” from the outer world. Cinque, a junior high school boy living on the Earth, is chosen as the hero. (Source: MyAnimeList)
Mashiroiro Symphony
When boys suddenly get into places where they’ve never been allowed before, some girls tend to get upset. So when the decision is made to merge the elite Yuihime Girls’ Private Academy and the coeducational Kagamidai Private Academy, everyone wants to take extra care in avoiding trouble while bringing the two Privates together. Therefore, rather than just bringing the Kagamidai boys into the Yuihime girls’ school all at once, a plan is concocted in which a group of test males will be inserted into the Girls’ Private Academy first.
Thus, poor young Shingo finds himself being thrown as a sacrificial lamb to the lionesses of Yuihime, who aren’t exactly waiting for him with open arms. Will Shingo manage to survive the estrogen soaked death pit that is Yuihime? Can the girls learn to be more receptive to the boys? And just how long until something involving panties will cause emotions to flare, sparks to fly and the battle of the sexes to explode? (Source: Sentai Filmworks, edited)
References: MyAnimeList, Wiki, ANN