Here is the few common examples of conductors and insulators based on descending conductivity:

Conductors:

silver
copper
gold
aluminum
iron
steel
brass
bronze
mercury
graphite
dirty water
concrete

TABLE OF THE CONDUCTIVE ORDER OF METALS
This list of electric conductivity includes alloys as well as pure elements. Because the size and shape of a substance affect its conductivity, the list assumes all samples are the same size.

Rank Metal
1 silver
2 copper
3 gold
4 aluminum
5 zinc
6 nickel
7 brass
8 bronze
9 iron
10 platinum
11 carbon steel
12 lead
13 stainless stee