Need a really good manga!! like REALLY good....?

Ive read a load a mangas lately and im really bored so i want to read a longish one thats really good. i love romance so it gotta have that and action too !!! i wouldnt mind a shounen romance but there cant be too much ecchi !!! i LOVED rave master so something along those lines !!!! give lotsa exmples please and thank you !!!