 If you liked
Sunabouzu
|
 ...then you might like
Ashita no Joe
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Kanta aka the Desert Punk and Yabuki Joe (especially in the beginning) have a lot of similarities. They are both selfish/self-absorbed. They both live in poor conditions but still manage to get by quite well. And they both have a young kid/s depending on them. And finally they are both naturally talented and skilled and fighting/tactics in the respective fields.
If you enjoyed one series because of the main character then I'd say you'd probably like the other. However their character development towards the end goes in opposite directions.