Kazaum
Othala
What I listed first was what Metal Archives listed. Unless, you mean by just using the genres they have specifically listed when you click on genres.
No basically what ever that site says for a genre we'll use to avoid argument. I don't agree that there is Pagan metal, but I really can't be bothered wasting me time about it, so we'll just use m-a.
So we're just going by these specific ones : Black ~ Death ~ Doom ~ Electronic ~ Folk/Viking ~ Gothic ~ Heavy/Traditional ~ Orchestral/Symphonic ~ Power ~ Progressive ~ Speed/Thrash. If not, then Pagan Metal would be valid, since if you search it on m-a, you'll get over 300 bands.