Rock/metal suggestion thread and no mention of Ozzy? One does not simply make a suggestion without mentioning the Prince of Darkness.
As for other suggestions, you seem to be more of a mainstream, Pop-Esque sort of guy. I'd look into something like Glam Metal, guys like Van Halen, Twisted Sister, Quiet Riot, Motley Crue, ect.. Then, of course, you've got the 'more rock than metal but technically metal' bands like Guns N Roses, Bon Jovi, Aerosmith. It'd also be worth checking out early metal acts like Judas Preist, Black Sabbath and Alice Cooper.
Metallica would be another pretty obvious one, they've got a lot of mainstream appeal.
There's also Babymetal if you're open to a bit of J-pop/Metal fusion. Sounds weird, looks weird at first... Just trust me. You listen once, think WTF did I just watch, then you eventually end up going back for more. Given that it's a direct fusion of pop and metal, Babymetal could definitely be something you'd like.
Other noteworthy recommendations;
Rammstein
Disturbed
Trivium
Foo Fighters
Skid Row
Emigrate
Sixx:A.M
Slash Ft. Myles Kennedy and The Conspirators
Sabaton
Red Hot Chilli Peppers
Megaherz
Omega Lithium
Audiotopsy
Dorje
AC/DC
Alter Bridge
Queen
Stevie Ray Vaughan
Steve Vai
Some noteworthy songs from artists I haven't listed...
Zodiac - Follow
Wolfmother - Joker And The Thief
Danzig - Month
Nickelback - Burn It To The Ground (don't expect miracles, it's Nickelback after all, but it's a decent song IMO)
Jimmy Eat World - The Middle