This is a psychological thriller directed by Satoshi Kon that explores identity, obsession, and the pressure of stardom. Similarly to Evangelion, Perfect Blue doesn't shy away from confronting psychological and identity questions in an intense and sometimes disturbing manner. https://www.youtube.com/watch?v=2O09gQC-KvA

Ergo Proxy (2006)

Ergo Proxy is a dystopian science fiction series that tackles questions of identity and consciousness with a cyberpunk aesthetic. With a rich plot and intriguing characters, Evangelion fans will appreciate the way Ergo Proxy uses its mecha battles to explore deeper themes. https://www.youtube.com/watch?v=47LU6BJxVxA

Terror in Resonance (2014)

This is an intriguing anime about two teenagers who decide to terrorize Tokyo with bombs to expose an obscure truth. It shares the theme of children involved in extreme situations and the question of morality amid chaos, similar to Evangelion. https://www.youtube.com/watch?v=aiZrjeZvF8Y

Gunbuster (1988-1989)

Created by the same Gainax that produced Evangelion, Gunbuster is an essential prelude. It introduces many of the design elements and themes that would come to stand out in Evangelion, including the emotional anguish of young pilots and epic battles against alien enemies. https://www.youtube.com/watch?v=k6S5wHVZlZA

Code Geass (2006 - 2008)

Code Geass blends mecha, political strategy, and a fast-paced plot with constant plot twists. The series also explores questions about freedom, rebellion, and sacrifice, similar to Evangelion. https://www.youtube.com/watch?v=9Ij7n9D595o

Akira (1988)

A cyberpunk classic, Akira is known for its detailed animation and dystopian plot. Like Evangelion, Akira explores the consequences of unchecked science and the resulting psychological trauma. https://www.youtube.com/watch?v=0zKXoazRf-Y

FLCL (2000 - 2018)

Another work from Gainax, FLCL is a unique blend of comedy, drama, action, and surrealism. While it shares some of that "confusion" feeling that viewers might experience watching Evangelion for the first time, FLCL is an unforgettable experience that explores the journey from adolescence to adulthood. https://www.youtube.com/watch?v=MqDlfqmUlcg

Bokurano (2007)

Bokurano is another anime that involves child mecha pilots, but like Evangelion, the real battle is internal. It explores mortality, sacrifice, and the emotional implications of their actions. https://www.youtube.com/watch?v=laFq2ANWlXc

Ghost In The Shell (1995)

This cyberpunk classic explores themes of identity, consciousness, and technology. The complexity of its plot and depth of its characters make it a must-watch for Evangelion fans. https://www.youtube.com/watch?v=8RF09G8Ymqg

Serial Experiments Lain (1998)

This is a complex and psychedelic anime that deals with themes of reality, identity, and the information age. With a unique atmosphere and unconventional presentation style, Lain is a stimulating challenge for Evangelion fans looking for something a bit different. https://www.youtube.com/watch?v=t5y4nQ5Y1V8 All of these animes share thematic, aesthetic, or narrative elements with Neon Genesis Evangelion and should be watched by fans looking for more deep and engaging content. If you're an Evangelion fan, you definitely don't want to miss these incredible series and films.