I dislike EDM personally haha
Since you like Halestorm you could try the Pretty Reckless, Within Temptation. Evanescence or Nightwish. All are female-fronted rock/metal bands. Other bands in those genres I recommend would be Linkin Park, Karnivool, Dead Letter Circus, Seether, Dead by Sunrise, Metallica, Mastodon, Ramstein and many others haha
I don't particularly like electronic music but there are a lot of dubstep remixes floating about on youtube as well.
What other genres do you like?