Some free usefull info:

** Damage types ***
Guristas - Kinetic / Thermal
Serpentis - Thermal / Kinetic
Mordus legion - Thermal / Kinetic
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - Kinetic / Explosive / Thermal
Minmatar Fleet - Thermal / Explosive
Amarr Navy - EM / Thermal
Mercenary - Em / Kinetic / Thermal / Explosive

Best Damage to NPCs
Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal & Kinetic
Blood - EM & Thermal
Sansha - Thermal
Angel - Explosive
Mercenary - Thermal

NPC Damage Info

EM - Explosive - Kinetic - Thermal

Angels 24% 34% 24% 18%
250k+ 13% 34% 32% 21%
Domination 14% 35% 33% 17%
300k+ 20% 36% 27% 17%
Gist 25% 32% 26% 17%
500k+ 16% 39% 29% 17%

Blood Raiders 55% 0% 0% 45%
250k+ 46% 0% 0% 54%
Corpus 56% 0% 0% 44%
500k+ 46% 0% 0% 54% &