A few zones of note include Oasis and South Ro . Stat wise these are identical to Hill Giants. These huge beasts range in the 32-40 level range. They hit very hard and run very fast. It would be advised that you do not fight these beasts without spirit of the wolf or journeyman boots activated.
Typical loot is very good.
I've gotten as much as 50pp off a single giant as well as high priced items.