What is the most logical next event?

How to fish on animal crossing
Buy a fishing rod from tom nook.
In wild world, he sells the regular fishing rod for 500 bells. In city folk, tom sells both the fishing rod and the silver rod, both for 500 bells each, however, the silver rod is pretty rare.
In order to receive the golden fishing rod, a player must catch all of the fish in their designated game. The amount of fish are 40 in animal crossing , 56 in wild world, and 64 in city folk.