If you're looking for manga similar to LOOOP, you might like these titles.
Yuuta Takenata has dreamed of being a gymnast ever since he was a little kid, so when he gets into high school he starts up the "Boys Rhythmic Gymnastics" team. He works hard and gets enough members to compete, but then the club adviser forces them to take the delinquent Azuma Wataru into they're club. He's loud, whinny and has absolutely no interest in gymnastics. Yuuta just gives up on him, telling to stop coming to the practices. But when he accidentally causes one of the members to break his arm, Azuma has to start training so as to take his part in the competition.
Shoutarou Futaba is fascinated by gymnastics after seeing it in his third year of middle school, and joins the rhythmic gymnastics team of his new high school Soushuukan High School, nicknamed "Ao High." He makes a friend with his schoolmate Ryouya Misato, who earned fame for as a gymnast during middle school.
What these young boys were entrusted with is the future of gymnastics. In order to unearth talent for the Tokyo Olympics, a group of middle schoolers are gathered together. These boys have harsh trials to undergo and a strict selection test to look forward to... Which of them will survive?
Fourteen-year-old Hikari Kamijo joins the rhythmic gymnastics team of her school, where she falls in love with Takaaki Ooishi, aspiring champion of artistic gymnastics, and befriends senpai Hazuki Shiina, sport and love rival, who Hikari truly admires. Aiming to become the best, Hikari competes with passion, always reaching higher limits and improving herself, helped by Mao Natsukawa, member of a rock band and composer of her competitions music, who's also in love with her. Rising to the top throughout the years, Hikari finds the strength to fight the most difficult challenges of her life.
Shoutarou Futaba is fascinated by gymnastics after seeing it in his third year of middle school, and joins the rhythmic gymnastics team of his new high school Soushuukan High School, nicknamed "Ao High." He makes a friend with his schoolmate Ryouya Misato, who earned fame for as a gymnast during middle school.
Mitsuki Amahara is an avid gymnast in his third year of middle school, but it's not until the final middle school competition that he competes for the first time. There, he is taken aback by the stunning performance of Sakura Dogase, a member of a renowned club. What will Mitsuki do in order to get closer to his goal...?!
A boy becomes enamored with Ribbon (rhythmic gymnastics) after seeing a young woman dancing by a shrine one evening. Years later, he steps onto the mat for a Ribbon competition. Everyone is shocked to see a boy trying to compete. Can he get past the stigma and dance on equal footing?
Sakura Karukaya liked her life: she was just a high schooler who loved rhythmic gymnastics, being raised by her older brother and sister. However, both of her siblings were hiding secrets about themselves and Sakura that would make her realize that the world around them was not what it seemed. Now, with the help of a mysterious dragon named Yoiyami, Sakura will have to confront these forces and the power within her if she wants to rescue her beloved brother and sister.