I'm just using this space to put in useful info I find in other profiles :)

* NPC Damage types
Angel Cartel - Kin / Expl / Therm
Blood Raider - Therm / EM
Guristas - Kin / Therm
Sansha's Nation - EM / Therm
Serpentis/Sevens - Kin/Therm
Mercenaries - all 4
Drones - all 4 - kin/therm
Amarr Navy - EM / Therm
Caldari Navy - Kin / Therm
Gallente Navy - Therm / Kinetic
Minmatar Fleet - Therm / Explosive
Ammatar Mandate - Therm
Thukker Tribe - Therm / Expl - Expl Msls
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Hideaway
Hidden Hideaway
Forsaken Hideaway
Forlorn Hideaway
Burrow
Refuge
Den
(I stay in high sec so that's all I have - https://wiki.eveuniversity.org/Combat_sites for more)
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** Main Damage type to shoot at the enemy **
Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal & Kinetic
Blood - EM & Thermal
Sansha - EM & Thermal
Angel - Explosive
Mercenary - Thermal
Rogue Drones - EM/Th