Basara, 7 Seeds Recommendations
Made by the same author, they share a similar art style and both mangas jump to different views of other characters instead of the point of view of just one. I mostly make this recommendation because the characters share similar personalities and experiences in a post-apocalyptic setting.
In all honesty, the only other manga like Basara is 7Seeds (and vice versa). Their common factor: Tamura Yumi, the mangaka. Sure, you will find superficial similarities between these two and a number of stories, seeing that 'post-apocalyptic Japan', 'destiny's child', 'gender-bender', 'survival games' etc are hardly original concepts in animanga. However, the quality of storytelling and the excellent character writing found in one of these can only be matched by the other.
So if you've read any one of these lamentably underrated manga and are now at a loss to find something truly like it, look to Tamura Yumi's other great work.
You definitely should read both of these. SHOULD. You have to.