These links collectively mention many–if not most–of the greatest soundtracks in music history.
Beyond YouTube: Mapping Music on the Internet
Introduction
Links Only
Descriptions and Links
> Album Covers
> Song Covers
> Blues
> Children’s Music and Parental Guides
> Downloading, Streaming, Playlists
> Finding Live Music
> Folk, Acoustic, Americana
> Halls of Fame and Museums
> History Timelines and other Deeper Dives
> Instruments and Resources for Musicians
> Internet Radio
> Jazz
> Lyrics and Song Interpretations
> Maps and Recommendation Engines
> Mastering Remastering
> Miscellaneous Sites Including Indie, Girl Groups, EDM, Trap, Pop
> Music Archives
> Music News and Commentary
> Odd and Unique Sites
> Online Music Communities
> Organizing Music Libraries
> Rating Music
> Regional Sites
> Rock
> Setlists
> Television, Podcast, Movies and Performance Sites
> Trivia
> Video Sites
> Wikis
Opinion: Descriptions and Links
> Best Soundtracks
> Focus on the Greats: Rock
> How to Listen to Music
> Movies About Rock
> Recommended Rock Books
> Recommended Videos
Ultimate Classic Rock
“Top 10 Soundtracks”
Rolling Stone
“The 25 Greatest Soundtracks of All Time”
uDiscoverMusic
“Best Rock’n’Roll Soundtracks: 10 Essential 50s Screen-Shakers”
Zimbio
“Modern Movies With Amazing Classic Rock Soundtracks”
RadioX
“The Greatest Movie Soundtracks of All Time”
93.7: KLBJ
“Top 22 Rock Songs in Movies”
ThoughtCo
“Top 10 Movie Soundtracks Featuring Classic Rock Music”
Rate Your Music
“Greatest Rock Soundtracks”
Interesting Engineering
“7 of the Very Best Heavy Metal Soundtracks of All Time”
WhatCulture
“10 Movie Soundtracks That Are Also Great Rock Albums”
93.9 BOB FM
“4 Essential Classic Rock Soundtracks”