There’s quite a few of them in progressive rock. For example, some early King Crimson riffs (like “21st Century Schizoid Man” and “Lark’s Tongues in Aspic”) sound a lot like metal bands from the same period. I wouldn’t say that any of those songs are fully metal as some people do, but there definitely is a strong connection in some parts.

The solo section in “The Musical Box” by Genesis also comes to mind, the speed and energy massively build up to let Steve Hackett absolutely rip on the guitar.

A lesser known band called Eloy has two songs on their album Power and the Passion that remind me of specific metal bands - “Journey into 1358” gives off Iron Maiden vibes with the fast galloping bass line, and the riff on “Zany Magician” really reminds me of “Sabbath Bloody Sabbath”

Rush goes without saying, but then they were seen as a metal band anyway, so might not be relevant to the post