Well, let's expand the terminology.

Shojo manga is targeted at school girls.

Josei is aimed at women teenage and older.

Shonen is for boys under teenage, and Seinen is basically all audiences but usually teenage and older guys.

Dragonball is definitely Shonen. Alita and Fist of the North Star are definitely seinen, and One Punch Man falls on the edge.

But that's just a tiny, tiny edge of manga. The norm in Japan is story lines that end, and there's a lot of diversity in stories. Some recent ones that come to mind include:

Fire Force - About a paramilitary group of pyromancers who fight fire elementals.

Goblin Slayer - Some edgy dark shit about a guy who is really, really committed to killing all goblins everywhere.

But those are all just fighting hero manga, and I'm not really even a fan of those because they don't have giant robots.

Well, let's expand the terminology.

Shojo manga is targeted at school girls.

Josei is aimed at women teenage and older.

Shonen is for boys under teenage, and Seinen is basically all audiences but usually teenage and older guys.

Dragonball is definitely Shonen. Alita and Fist of the North Star are definitely seinen, and One Punch Man falls on the edge.

But that's just a tiny, tiny edge of manga. The norm in Japan is story lines that end, and there's a lot of diversity in stories. Some recent ones that come to mind include:

Fire Force - About a paramilitary group of pyromancers who fight fire elementals.

Goblin Slayer - Some edgy dark shit about a guy who is really, really committed to killing all goblins everywhere.