There is nothing special about fly fishing. It is just lure fishing with a very light weight lure. The lure is so light that it cannot be cast out. So they use a weighted line.
But of course, those people that fly fish will tell you different !!
There is nothing special about trout fishing. They are just like most other fresh water fish. They will take lures and bait. When selecting lure or bait just follow the golden rule...match the hatch. So pretty much anything you would use for any other fresh water fish. Grasshoppers, worms, maggots etc.
If using a lure again there is nothing special. Trout will take hard lures, soft plastics, small spoons etc and of course flies. A very popular lure for trout is the Tassie Devil, in fact it is so popular it is often called "the trout lure".
But of course, those people that fly fish will tell you different.
You can also get trout bait pellets. That might be a good starting point as they are formulated specifically for trout.
itsaboat mate...Life is just a boat and then ya marry one !