Doom Metal

can anyone recommend me shit similar to Burning Witch, my friend Greg wants to start a new band influenced by these guys and I need more reference points.
 
I like Ahab :)
I was hoping the last full-length would have a little more variation though (the demo beforehand was fucking ace though :kickass:)
 
*̡͌l̡*̡̡ ̴̡ı̴̴̡ ̡̡͡|̲̲̲͡͡͡ ̲▫̲͡ ̲̲̲͡͡π̲̲͡͡ ̲̲͡▫̲̲͡͡ ̲|̡̡̡ ̡ ̴̡ı̴̡̡ *̡͌l̡*