what tools do I need to change spark plugs, spark plug wires & ignition coil?

Hello, what testing has been performed to know that you need these parts replaced? A P0306 misfire could be due to plugs, wires, coil -- but it could be from engine compression, valve train issues or fuel delivery. If you are asking what tools you need to replace these components, you probably should be having a professional assist you with this. Or at the very least, obtain a repair manual or access to repair data. It's totally impossible to advise you via this forum - you have to be there and have experience to know what you need.