There are many such soundtracks. The representative works are the 10 most powerful soundtracks circulated on the Internet. Unfortunately, they are from the last century.

The most widely circulated songs in this century are "Requiem for a Dream" "Song", from the trailer soundtrack of the movie "The Lord of the Rings: The Two Towers"; "time", from the ending song soundtrack of the movie "Inception"; "the surface of the sun", from the movie "The Sun" Shocking soundtrack; "the Ludlows" is a ballad from the movie "The Ludlows". . . These are widely used in major TV programs

Of course, the epic soundtrack mentioned by the poster should be the video soundtrack produced by the priest on Youku! Those are all music produced by music companies such as "two step from hell" and "X-ray dog". I also like it very much, such as "man of honor", "heart of courage", "the journey", etc. Magnificent epic music

The last thing I have to mention is John Dreamer. As an independent composer, his soundtrack in "Assassin's Creed" is quite classic, especially the main theme-"rise", absolutely Shocking!