meshuggah, dillinger escape plan, cynic, locust etc. These few are the more popular one
Besides the above, just go to goggle.com and key in scandinavian metal, i believe there will be a lot of info on the various bands from norway, sweden, finland etc. From black metal to melodic to viking to progressive metal to opera metal :lol:
in term of those sweet harmonising solo, if you are into those, just check out iron madien, inflames, children of bodom etc. Most band with double guitarist playing melodic metal like to have those type of harmonising solo