Is there a genre that combines electro-house and heavy-metal?

Yes. It's called "industrial." Check out the bands Ministry and KMFDM. read more

It’s 2017. Electro House is like a thing from 2013′s & 14′s. Not many artists make electro/bigroom house now. But, if you’re a hardcore electro house lover, I’d recommend you to check #MaxximizeOnAir episodes. Also, there’s this channel called Nik Cooper on YouTube. His taste is heavily towards the harder genres of house and bounce. read more

Alternative metal usually combines heavy metal with influences from genres like alternative rock, and in some cases other genres not normally associated with metal as well. One of the main characteristics of alternative metal and its subgenres are heavily downtuned, mid-paced "chug"-like guitar riffs. read more