Here are some rock and metal ballads for you to check out:

"Anthem" - Kamelot

"Le Ciel" - Malice Mizer

"The Cape of Storms" - Hyde

"Desperado" - Eagles

"Over the Rainbow" - The TRAX

"El Amor de Mi Vida" - Tierra Santa

"Tears" - X Japan

"The Misery" - Sonata Arctica

"Torn" - Shadow Gallery

"The Magic of the Wizard's Dream" - Rhapsody ft. Christopher Lee

"Before I Die (Kazha's Tears Version)" - Heavensdust

Enjoy (if you can find them).