3.4 Help with making Baron+Zombie/Herald/DB/Spectre Guardian build

Hi guys. I'm still a relatively inexperienced player but I have pushed out a decent necromancer before so I am well acquainted with some of the finer points of how to make a minion build.

I'm trying to figure out how to make myself a Guardian Build using a combination of

Baron + the new Iron Fortress. (Either that or go with the Shaper's Touch + Geofri's Sanctuary Combination)

Zombies are a give in as well as the Spectres.

Just really unsure if Dominating blow + Herald will work with this but I really want to give it a try.

Gloves: Either Shaper's Touch or Command of the Pit.

Boots: Bones of Url. I can run with an extra zombie and get another spectre for buffing. Probably running with two Carnage Chieftains and 1 Host Chieftain.

1hand: Not sure. I am debating between Mon'tregul's Grasp and The Scourge.

Shield: Again not sure. Any ideas?

Probably gonna use Shield Charge or Leap Slam for movement depending on what I choose

Amulet: Astramentis

Skills:

Dominating Blow: Fire Penetration - Elemental Damage with Attacks - Ruthless - Multistrike - Elemental Focus

Herald Of Purity: Minion Damage - Elemental Damage with Attacks - Added Fire Damage

Cast When Damage Taken: Blood Rage - Immortal Call - Flesh Offering

Raise Zombie: Melee Physical Damage + Added Fire Damage + Minion Damage

Summon Lightening Golem + Vaal Haste + Anger

Spectre + Blood Magic + Summon Holy Relic