

If the maximum amount of sockets on the item equals the amount you need, you can also take it to Larzuk, he will add the maximum amount of sockets to the item as a quest reward.

When you find a good base without sockets you can try to add sockets with the Horadric Cube socket recipe.See the detailed type definition for more info.

Note that for Runewords, Scepters, Maces, Hammers, and Clubs are distinct classes, even though the game groups them all under the Mace class. This means that Set Items, Unique Items, or Magic Items with enough Sockets and the proper item type. Insight can only be made in Polearms or Staves (missile weapons too in patch 2.4), so it will not work in Spears (which look like Polearms). Rune Words will only work in Socketed non-magical items.
