Lead is actually a great example of a metal with incredibly high electrical resistance. It’s technically conductive, yes, but you’re not going to make any electricity with it.
Steel, being one of the first alloys commonly made, also has high electrical resistance. Gold and copper would work, but it would be difficult to convince people in the past to use what was effectively money to create something like wire.
I mean, would you chop up some dollar bills to make strips of cloth that are part of a machine you’ve never heard of from some guy claiming to be a time traveler?