I finished The Breaker series ages ago and its starting to look like by the time the series starts again, i will have white hair so any recommendations similar to breaker
Gantz: Mature, good character development Shokugeki no Soma: FOOODDDDD Yongbi: amusing Battle Through the Heavens: wayyyyy farther in the story than the novel, no need for imagination while reading Dolly Kill Kill: story hasn't been done before Black Joke:amusing, mature Sun-Ken Rock: Jap dude goes after a girl in korea, becomes gangster boss, badass I got more, but meh.
The breaker is a difficult manhwa to replace Action wise, no manga is comparable. Storywise, there are a bunch of manga that can replace it. Full metal alchemist has one of the best plot for manga.
Shamo.. Go to thespecrum.net for Shin angyo oshi. The breaker, for me, doesn't seems too much. The classic fool, tgd classic antagonist... The art's so and so. But those are my tastes.