Angel (Minmatar space) :deal and are weak to explosive and kinetic damage. They use target target painters that are mostly harmless.
Serpentis (Gallente space) :deal and are weak to kinetic and thermal. They use sensor dampeners that will drop your targeting range.
Blood raiders and Sansha (Amarr space) : deal and are weak to electromagnetic and thermal. They use tracking disruptions that will hinder all turret users and neuts that will hinder ships with active tank.
Guristas (Caldari space) : deal and are weak to kinetic and thermal. They use ECM that will annoy everyone.
Rogue drones (everywhere) : deal various damage types, mostly kinetic, thermal and explosive. They are weak to electromagnetic and thermal damage.