We can't help you there
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Post up some stuff in the FTA threads or something. A dragonscale or Alma negra is probably your best bet anyways. Oh, and try the non-class-specific shields too. I've heard that the smite damage on a SS is not too bad (I could be wrong
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).
EDIT: Just found more info on the items:
Alma Negra
Sacred Rondache
Defense: 461-511 (varies)(Base Defense: 138-164)
Required Level: 77
Required Strength: 109
Chance To Block: 78%
Smite Damage: 35 To 58
Durability: 68
(Paladin Only)
+180-210% Enhanced Defense (varies)
+1-2 To Paladin Skill Levels (varies)
20% Increased Chance of Blocking
30% Faster Block Rate
+40-75% Enhanced Damage (varies)
40-75% Bonus to Attack Rating (varies)
Magic Damage Reduced By 5-9 (varies)
(Only Spawns In Patch 1.10 or later)
Herald Of Zakarum***
Gilded Shield
Defense: 422-507 (varies)(Base Defense: 144-168)
Required Level: 42
Required Strength: 89
Durability: 50
Chance To Block: 82%
Smite Damage: 20 To 28
(Paladin Only)
+150-200% Enhanced Defense (varies)
30% Increased Chance Of Blocking
30% Faster Block Rate
20% Bonus To Attack Rating
+20 To Strength
+20 To Vitality
All Resistances +50
+2 To Paladin Skill Levels
+2 To Combat Skills (Paladin Only)
(Only Spawns In Patch 1.09 or later)
Dragonscale
Zakarum Shield
Defense: 523-582 (varies)(Base Defense: 169-193)
Required Level: 80
Required Strength: 142
Durability: 65
Chance To Block: 52%
Smite Damage: 46 To 46
(Paladin Only)
+170-200% Enhanced Defense (varies)
Adds 211-371 Fire Damage
+15% To Fire Skill Damage
+10 To Hydra
+5% To Maximum Fire Resist
+15-25 To Strength (varies)
Fire Absorb 10-20% (varies)
(Only Spawns In Patch 1.10 or later)
Stormshield
Monarch
Defense: (136-504) - (151-519) (varies)(Base Defense: 133-148)
Required Level: 73
Required Strength: 156
Chance to Block: Pal: 77%, Ama/Asn/Bar: 72%, Dru/Nec/Sor: 67%
Paladin Smite Damage: 12 To 34
+ (3.75 Per Character Level) 3-371 Defense (Based On Character Level)
+25% Increased Chance Of Blocking
35% Faster Block Rate
Damage Reduced By 35%
Cold Resist +60%
Lightning Resist +25%
+30 To Strength
Attacker Takes Lightning Damage of 10
Indestructible
(Only Spawns In Patch 1.09 or later)
Spike Thorn
Blade Barrier
Defense: 325.6-410 (varies)(Base Defense: 147-163)
Required Level: 70
Required Strength: 118
Chance to Block: Pal: 50%, Ama/Asn/Bar: 45%, Dru/Nec/Sor: 40%
Durability: 333
Paladin Smite Damage: 26 To 40
+120-150% Enhanced Defense (varies)
+30% Faster Hit Recovery
Damage Reduced By 15-20% (varies)
+ (1.375 Per Character Level) Attacker Takes Damage of 1-136 (Based On Character Level)
Socketed (1)
(Only Spawns In Patch 1.10 or later)
***note that HoZ is noted as Gilded Shield. If upgraded into a Zakarum Shield, it will probably have the same Smite Damage as the Dragonscale.
As you can see, Dragonscale and Alma Negra lead in the Unique Smite Damage shields department.
Now for the base items:
Sacred Targe
Smite Damage: 22-70
Sacred Rondache
Smite Damage: 35-58
Kurast Shield
Smite Damage: 10-82
Zakarum Shield
Smite Damage: 46-46
Vortex Shield
Smite Damage: 5-87
All of the smite damage of these shields are at an average of 46. So it's pretty much all up to you. If you want to take a gamble, go for an Exile Vortex Shield. Or If you want a VERY precise smite damage, go for an Exile Zakarum Shield.
The cheapest bet would be to go for a Dragonscale or use your Alma Negra, or get an ethereal Zod'ed one (which can be a lot more expensive) Other than that, Eth Exile shield is the way to go. On my current knowledge, Eth item increases all mods except durablilty by 50%, meaning it could be able to increase the SMITE damage of an Eth shield by 50%. If so, any runeword/unique paladin shield would do.