We all do things a bit different, so there are no hard and fast rules for this. What appeals to you is what you will follow. You've probably been around enough to have an idea of what you want to try. If you decide on hair there are many kinds from super soft to stiff and it all behaves and ties just a little different. The fun is learning how they act and how to make them turn out like you want. This is where you will begin talking to yourself. 2 tools that I feel you shouldn't skimp on are bobbins(I have 4) and a Materelli whip finisher. The others you will get in a kit or upgrade as you go. The bobbins need to have a ceramic bead in the tip to cut down on abrasion and keep from breaking the thread. The cheaper ones without the bead wear quickly and will break thread regularly, this is super frustrating. You'll begin having a fun time and catching fish with your own jigs and a few years from now you'll be teaching folks too. Keep us posted.......
Creativity is just intelligence fooling around