Manga Series for DB Fans

[SSJ2]

Fullmetal Alchemist.

Certainly not as focused on action, but still shonen nonetheless. This was the first anime I watched after DBZ, and I thought it was the best thing ever.

 

[Yoshi]

While it isn't a battle shonen, I feel Slam Dunk should also be mentioned. It's a classic like DBZ, and is also good.

 

[Yoshi]

One Piece and Toriko are very popular. One Piece especially, although Toriko doesn't sell well.

Actually, Toriko's sales are quite exceptional, despite the anime's poor standing. For a series that's only gone on for 7 years, it's sold more than any other of that time period (other than Shingeki no Kyojin). 2 million copies were sold in between last year and this one, which is almost as impressive as OP's annual sales.

The sales are still poor in comparison to the popularity.

 

[SaiyanZ3]

Easily Yu Yu Hakusho. Characters and action are similar, though Yu Yu Hakusho tends to get a little deeper with its themes and interesting complexities

 

[Alex Boss]

One Piece, Hunter x Hunter, Fullmetal Alchemist.