The best replacement for dubstep is brostep.

The best alternatives to dubstep are rated as following:
★★★★★  brostep
★★★★★  techno
★★★★  house
★★★★  dnb
★★★★  electro
★★★  drum and bass
★★★  trap
★★★  trance
★★  house music
★★  skrillex
★★  edm
★★  electronica
★★  hardstyle
★★  dub step
★★  stfu
★  rap
★  chillstep
★  hip hop
★  dub
  grime
  screamo
  drum n bass
  breakbeat

Your alternative for dubstep is not listed? Suggest!
Speaking about dubstep, one probably shouldn't forget about female vocals.

Other search terms related to dubstep and their ratings are:
★★★★★ female vocals
★★ violin
★ metal
girl singing
You have in mind a companion for dubstep and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of dubstep in all years. Click on graph for more.
dubstep
brostep
techno