Books about the Holocaust?

I have recently gotten into books about the Holocaust. I’ve read The Boy In The Striped Pyjamas, The Book Thief, The Tattooist Of Auschwitz, and am currently reading Cilka’s Journey. I would love more books like these! Fiction or non fiction are fine! I also got recommended a book a while ago that was called Johnathan’s Story or something like that. It definitely had a J name in the title. I would also appreciate help finding that! :)