You cannot consider metal until you’ve gone through Iron Maiden’s whole back catalog. And that spans from 1980 through to 2010 so far. 30 years of some of literally the best metal to be had in the world.
Go through their music, from starting in 1980 through to their current work, in 2010. It’ll only develop a deeper love for the music.
I’m on it! Gonna be doing a whole heck of lot of listening!