-Call it what you like, but I've been looking for this kinda stuff for few years now and so far i've come across only a handful of similar and so-called "advanced" bands that hail this Hellhammer-tune.
You know, that groovy but slow & heavy stuff, like a slowdowned punk with a possible UGH! - shouted every now and than.
Bands like Warhammer and Apokalyptic raids that have been known to make the typical hellhammer-like music for tribute to these legends and new bands like Coffins and Lair of the minotaur (mostly the first album) with a sludgy aproach.
This journal is about gathering these slow-tuned heavy & groovy bands (and songs).
Bands i've found so far:
Lair of the Minotaur
Rhino / Horn of the Rhino
This is the most modern aproach to hellhammer i've heard so far.
Heavy and distorded death/doom with mostly low growls and lengthy songs.