Back in the 1990s, Dad recorded an interview with Stephen Speilberg's Shoah Foundation and I have a copy of that interview.
Also, the Holocaust Museum in Maitland, Florida has a large interactive exhibit with Dad's story as the main theme as you go through it. Because he was the same age as many of the school children, his story really resonates with them.
Plus, the museum did 3 days of interviews with Dad for an even more interactive exhibit. You can walk up to a TV screen with him sitting there on the screen and ask him questions, and the AI will find the correct answer and pop up the recording of him answering your question. Sorta like a "live action Siri". I joked that after he dies, I can still go talk to him, and my family told me that's morbid. I think it's really cool.