The best replacement for anthrax is metallica.

The best alternatives to anthrax are rated as following:
★★★★★  metallica
★★★  slayer
★★★  smallpox
★★  megadeth
★  ebola
★  public enemy
★  ricin
  nuclear assault
  botulism

Your alternative for anthrax is not listed? Suggest!
Speaking about anthrax, one probably shouldn't forget about public enemy.

Other search terms related to anthrax and their ratings are:
★★★★★ public enemy
★★★★ john bush
★★★ dan nelson
★★ tide
★ corey taylor
★ joey belladonna
★ public enemy bring the noise
scott ian
public enemy - bring the noise
phil anselmo
You have in mind a companion for anthrax and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of anthrax in all years. Click on graph for more.
anthrax
metallica
slayer