You might find 'Blue Period' similar. It also explores the experiences and growth of characters in a high school setting, with similar themes of self-discovery and friendships.
Perhaps 'My Hero Academia' could be what you're looking for. It features a diverse cast of high school characters and has elements of action and personal development like in Be Bop Highschool.
Chinzuri bop hentai manga might have unique themes or art styles that set it apart from others. Maybe it focuses more on certain character types or has a distinct story progression.
It could be a fantasy cartoon where a dog and a giraffe have some musical adventure and the 'bop bop bop' is part of the background music.
I'd recommend Rosario + Vampire. It has a similar supernatural theme and school setting as Highschool DxD.
Maybe 'Parasyte' is somewhat like it. Both have a survival theme and showcase characters' struggles in a world full of threats. Also, the art styles have a certain resemblance.
One manga that could be similar is 'Ouran High School Host Club'. It has a light-hearted and fun school setting with interesting characters.
They are quite similar. The main plot and characters remain mostly the same.
The 'Highschool of the Dead' anime is known for its resemblance to the manga. It successfully captures the main events and the essence of the story. There might be a few tweaks here and there to make it visually appealing for the viewers, but it stays true to the source material in essence.
Overall, the Ouran Highschool anime closely resembles the manga. Some minor details might differ, but the core story and charm remain intact. The animation style also does justice to the original manga art.
I'd recommend 'Zombiepowder.' It has a similar survival and horror theme with interesting character dynamics.
There are some differences. The Rock version might have certain adaptations or changes compared to the original manga.