If you liked the Cromartie High School manga, the Anime-Planet community thinks you'd like:
In the aftermath of WWIII Tokyo was re-built as Neo-Tokyo; thirty-eight years later it has become a major metropolis. With the memory of the war and reconstruction fading, corruption, criminality and civil strife are threatening to tear the city apart. The military has a secret project developing humans with psychic powers which they hope will help Neo-Tokyo solve its problems. However, when one of the test subjects escapes and hides with one of the biker gangs plaguing the city, the military does everything it can to recover its test subject and cover up the existence of its research program...
Cromartie High School seriously struck me as what Akira would be if the cast were trapped inside a high school instead of gang banging in a post-apocalyptic world. Both mangas focus on guys who kind of scare me, but examine them from completely different angles. If you like tough guys, but can't choose between drama and comedy, never fear! The action of Akira and the randomness of Cromartie should completely fill your quota of maladjusted young men!
Miss Yukari's high school class is far from average. With ten-year-old genius Chiyo; dim-witted ‘Osaka'; weight conscious Yomi; loud-mouthed and energetic Tomo; and the ultra cool, animal-loving Sakaki, daily life is far from dull. Follow the day-to-day lives of this fun-loving group of girls as they progress through high school. From annual cultural festivals to gambling, from first dreams of the New Year to death-defying road trips, the lives of these students and their teachers are always exciting and new.
Conent wise, both Azumanga Daioh and Cromartie High School are fairly random high school-based comedy. One focuses on a bunch of cute girls and the other big delinquent boys, so though the subject matter isn't particularly similar, the style of comedy is. Also both of these are more like sketches rather than one long story, so if you like that in your comedy manga and liked one of these, then try the other.
The humor in Dragon Ball and Cromartie High School is aimed at the exact same crowd. It's crude and bawdy, over the top and unpredictable... if you laughed at one, you'll probably get a chuckle out of the other as well.
They're by the same author; have the same borderline sane/outlandish humor with mundane stuff made comedic and the same manly art style that retains the Nonaka flavor. If you're a fan of one, check out the other for more oddball comedy with a foot on the ground.
Both may get wordy sometimes but it's just that Nonaka flavor of comedy at work.