If you liked the K-On! anime, the Anime-Planet community thinks you'd like:
Negishi Souichi always dreamed of joining a trendy pop band, so that he could perform music like that of his idol, Kahimi Karie. In order to realize his dream, he decided to leave the country side and his loving parents to study in Tokyo. And after graduating, he does manage to join a band... but not the kind he was expecting! As lead singer of the death metal band Detroit Metal City, under the stage name Krauser II, he is made to perform loud songs filled with obscene lyrics - a far cry from the songs he used to write in school. But despite the fact that Negishi hates DMC's music, the Krauser side of him will do anything to put on a good show for his fans... even if it means making Negishi's life a misery!
If you liked K-on because it featured a band that plays cool music and has a pleasant story, then you might also like the total opposite of that concept. A metal band that is on its way to conquer the heavy metal world with epic legends.
Ayumi, Kei, Koyoi, Rika and Nao are five middle school friends whose hot topic of conversation is, as always, love. Ayumi dreams of having a boy confess to her and can't understand the idea that receiving unwanted confessions can be troublesome. She even believes that she will happily accept any guy who approaches her - that is, until she receives a love letter from Misao, a large, delinquent high school boy whose very presence makes small children cry! Not wanting to date him but too scared to reject him, Ayumi has no idea what to do, especially when Misao, now nicknamed Beast-kun by the girls, begins following her to and from school. To make matters worse, Ayumi then falls for Mamoru, a boy in her class who is Beast-kun's brother! With plenty of experiences in life and love left ahead, will the girls retain their naive beliefs, or is it time to shake off that brother complex and realize that appearances aren't everything?
If you liked K-on! or Hasukoi Limied you'll like te other because they'e both about a group of girls who are best friends ad like to have fun together. The romance is mostly present in Hatsukoi limited, but both have a similar kind of comedy.
So, if you liked one I think you should at least try the other!
On a day like any other, average middle-school-student Yurie Hitotsubashi got the surprise of a lifetime – she became a goddess! Unfortunately, even with her newfound powers, Yurie still can’t manage to find the courage to confess to Kenji, her crush. With Yurie’s fame comes others’ fortune; Matsuri, caretaker of the local shrine, names Yurie the shrine’s new goddess and becomes her manager – for yen and glory! Along with Yurie’s faithful best friend Mitsue, the trio set forth on an adventure to find out what it really means to become a goddess.
Kamichu! and K-On! are gentle and cute slice-of-life series that end with an exclaimation mark. They each feature a clumsy girl as a lead character, and her interactions with her friends. I vastly preferred Kamichu!, because I felt the characters were more interesting, there was a semblance of plot, and it made me laugh, but the recommendation still works both ways if you like really cute girls doing cute things.
After her grandmother dies, thirteen year-old Kana Nakamachi runs away from home convinced her absent parents will sell her. She tries to find a job, but with nowhere willing to hire a girl of her age without parental consent, she is back at square one. Then, to make matters worse, a young girl called Yume crashes her bicycle into Kana and knocks her unconscious! Following this chance encounter, Kana learns of a job vacancy at the newspaper company that Yume works for and quickly applies. Now Kana has secured herself a live-in job delivering newspapers along with her new co-workers: lively Yume; quiet Yuki; drunken and perverted Haruka; money-hungry Hinata; and grade school deputy manager, Saki. From memorizing her paper route to learning how to ride a bicycle to fixing her terrifying smile, Kana’s new life has only just begun.
Both of these prominently feature teenage girls. Both are slice of life, with an anchor to keep the action going. K-on! has the Light Music Club, and Kanamemo has the newspaper. Both are comedy, have an upbeat and cheerful tone. K-on! contains more moe than kana. If you like one, I recommended watching the other.
Both Kin-iro Mosaic and K-On! follow a group of high school girls, and focus more on their conversations than on any kind of plot. Light, humorous, and full of cute girls doing cute things--fans of either show should check out the other!