what are you looking to do? do you want to longboard or shortboard? what are your current dimensions for your board and your personal dimensions? height, weight, foot size? do you want an all around board? vertical? pocket board? short fat? all things to think about. Try to narrow down what exactly you want.
are you looking for performance fish or retro fish? do you want twin quad thruster? try being more specific shortboard and fish are really broad terms. what do you want to do when surfing?