Aber auch von deutschen interpreten, z.b. kraftwolf oder den blinden wächtern

Grosser fan des schwarzen sabbates und der eisernen jungfrau

I just checked the spotify listener count for some of the more popular bands. Looks like metallica still has about 27 million monthly listeners, so I would say they still dominate the industry, even if you could consider them being one of "yesterdays titans".

Newer ones might be Papa Roach (1993) with 13m listeners, or FFDP (2005) with 7m listeners.

So all in all i would say that the older bands do still have quite a lot of influence and listeners. Maybe metal is a difficult genre for newcomers?