If you're looking for manga similar to Sabagebu!, you might like these titles.
“Everything is fun and games in the Pastimer Research Club!” Kasumi is a girl that hates playing games and is struggling with her low English grades. However, her fate is about to take a playful turn thanks to her colleagues: the airheaded Hanako and the "overseas" transfer student Olivia! Will these three girls play a lot of different games together? Absolutely yes! Will Kasumi English grades improve at all? Absolutely n... well, that remains to be seen.
Sosuke has finally lost his mind - and his memory! Rehashing his previous exploits will keep Kaname busy, but it doesn't take long for the military mind of this soldier to bounce back with a bang - literally! He's locked, loaded, and back to his old self by first period, as bombs and bullets grace the halls of high school!
All Asakura wants is to graduate and become a high school teacher, but not for the reasons you’d expect: he wants to be surrounded by boobs - ample, bountiful boobs. But Asakura’s goal of mammary immersion won’t come easy, as his best friend Ishida is determined to open a flower shop with him once they graduate - that is, if they manage to graduate. Together, the duo navigates day-to-day school life with crass, whether they’re ogling their busty teacher, taking on part time jobs or dodging assassination attempts by robots.
Yuuko, Mio and Mai are regular high school girls who lead a normal everyday life. However, with bizarre explosions causing random objects to rain down on their heads, lunch turning into an epic battle between girl and wiener, and students riding to school on goats, their lives are anything but ordinary. Meanwhile android Nano spends her days wishing she were a normal human, but keeping house for her creator, the playful and immature child genius Hakase, dealing with talking cat Sakamoto, and trying to keep a hold of her multitude of easily-detachable body parts, her dream is far from a reality...
Midori is in a bit of a bind. She is in debt, and her landlady is trying to shake her down for unpaid rent. Her best friend refuses to loan her cash since she’s wised up to her tricks. Maybe some bullying would help. Or a bit of petty theft? Neither is sustainable. Maybe getting a job would settle things… But working means less time for fun adventures in the big city…