Start with a lockring tool, a fixed cup tool, a pin spanner and crank puller.
I agree with that list, except why the fixed cup tool?
I have the Hozan lockring wrench, and I'm surprised it costs so much, as I've had it for a long time, but it works well.
I refuse to use the word "spanner" because it is merely the British word for "wrench." There is no difference.