Fin help

[Mohawk918]

Ok so i have a new to me 9'6. The fin on it has been run into the sand some so its worn a lil. I want to get something new for it. Im wanting to focus on riding the nose. Please help point me to some good ones that would be good for me. I know Rainbow has tons that i like but i dont know enough on how to choose the one that would fit me best.