Now is it a squeak or a creaking sound?
Upper arm bushes if its the latter and to be honest, a lot cheaper to resolve than many actually think!
Get hold of a hyperdermic syringe from a diabetic friend or friendly GP (as long as you tell him what it's for)...
Fill it with white lithium spray grease (Halfrauds).
Jack up the car and take off the front wheel.
You will see the two rubber bushes either side of the upper suspension arm.
Carefully insert the needle as far as you can into the bushes and squeeze the lithium grease in a little at a time.
I tend to go 12, 3, 6 & 9 o'clock around them.
10 minutes work either side and you are done for another six months at least and sixty quid plus labour better off in your wallet!
Or if you prefer..... Buy the arms, spend two hours plus and bleeding knuckles to replace them per side..... Only to find it was the bottom arms after all...
I know what I would prefer!
Keep it cheap, keep it simple!
Oh and you can do the same to the bottom arms while you are on too
Know what I mean?