If you'd like some of the classics:

* Megademo by RSI (1989): https://www.pouet.net/prod.php?which=3119

* Mental Hangover by Scoopex (1990): https://www.pouet.net/prod.php?which=1472

* Enigma by Phenomena (1991): https://www.pouet.net/prod.php?which=394

* Hardwired by Crionics & TSL (1991): https://www.pouet.net/prod.php?which=981

* Jesus on E's by LSD (1992): https://www.pouet.net/prod.php?which=5265

* World of Commodore by Sanity (1992): https://www.pouet.net/prod.php?which=2938

* State of the Art by Spaceballs (1992): https://www.pouet.net/prod.php?which=99

* Desert Dream by Kefrens (1993): https://www.pouet.net/prod.php?which=1483

* How to Skin A Cat by Melon Dezign (1993): https://www.pouet.net/prod.php?which=3539