Manga-like books ?!

Hey guys . I've been searching mangas to read when I found out that I already read a lot of it ( over 8000 ) and I think I read all the good ones . So I was thinking of reading books that similar to mangas and could turn into ones ( like....not those positive books or boring love novels)
So I really need recommendations if you could help (〜￣△￣)〜 thx in advance