Surtur Rising (2011) is amazing, Deceiver of the Gods (2013) is really good, too. Jomsviking (2016) is one of my favorite albums by them. I'm a sucker for concept albums and the last few tracks are epic. Doro is even on one! Berserker, though.... seems kinda hollow. :\
^ I remember when that album came out. I think they opened for Evile when I saw them the first time. I never did get into that band aside from the random listen to a single now and then.
There Stood the Fence is the best song on this album, in my opinion.