I don't remember names, but I know set affixes they come with:
- Cerebral Vortex's Amulet: This one is the most popular eternal that I've seen on PVP builds. It just gives six affixes which are useful on PVP (CV, Balance, PTL, +4-6 Skulldraga or Torrent, All Resist and Flat ED).
- Mythical Head and Weapon: They're eternal which have 4 mythstone slots, which allows you to craft a Mythic + 3 Epic Affixes on it. Considering that you're always crafting Flat HP, ED and something else, it's always something to think about.
- Inferno Weapons: They give ED+ and HP+ and some other useful affixes, which vary from which class you got the weapon.
- Aethereal Drain MH and OH: They give very useful affixes for anyone which rellies on primary attacks.
There are others, I don't remember exactly set affix name, then maybe I'll check them later.