Sonething other than Rapier

This is my first soulsborne game, I was a strength build but I resepec to a dex rapier build and I think its more fun. I have been using a +5 rapier since I switched but now I am at Iron keep and I am kinda bored with rapier, dont get me wrong its s really really good and fast weapon but are there any other good weapon like types of rapier or even katana or something that scales A like rapier on dex.