Goatmoon's "Death Before Dishonour" belongs to the better class of Finnish releases from this decade, RAC-influenced "mood" black metal in the vein of Satanic Warmaster's "Strength and Honour" which is the album that basically started the current era of Finnish BM. So if you hate SW, maybe also skip Goatmoon but the first album is of the same quality. "Finnish Steel Storm" was more emotional, and worse (with lots of cheesy melodies repeated).
Grom had a good beginning, songs basically combinations of various riff influences from Bathory to tremolo BM, shifting with every song, NS/traditionalist lyrics, with some solid tracks on the demos and splits but never got quite there. Njiqahdda is "weird black metal" (drone music combined with emo-regressive BM tendencies, imagine the worst of Xasthur, stuff he would throw out of the window) for hipster purposes, avoid!