I've had this list in my head for a while and want to write it down so it can be challenged.  That is why I didn't put it on r/socialism.  I feel like there are a lot of capitalists on here so the list will be challenged to the fullest.  Some names will be obvious and some may be controversial.  Feel free to add or challenge anyone and I will provide the socialist quotes.

Jesus Christ
Albert Einstein
George Orwell
Nelson Mandela
Martin Luther King
Tupac Shakur
Bob Marley
John Lennon (almost wrote John Lenin lol)
Stephen Hawking
Mahatma Gandi
Abraham Lincoln

Growing up as a capitalist I looked up to all these people and had no idea they were socialists until recent years when I went back and reviewed the work after learning about socialism.    Many of these people were assassinated and people loved them so much they hold theories that they are still alive.   I often wonder where we would be with their leadership today.