I went to "nam in 2019 with my brother when he retired. He was stationed in Quang Tri and Khe Sanh in early 1971. We flew into Hanoi and spent two days decompressing (went to Ha Long Bay, which was awesome). We then flew to Da Nang and stayed in a hotel in Hue. We chose that because it has good hotels and restaurants. We hired a driver and visited Quang Tri, went over past "the rockpile" and Khe Sanh. This is a museum and coffee farm now. The museum curator was waiting for us, I don't know how he knew we were coming, and never left my brother's side. My brother told several stories that I'd never heard. The prompting by the curator got him going. He turned to me and said he'd not remembered these things for 40 years. On the road parallel to what was once the DMZ, my brother pointed out a place where two friends were killed trying to repair a broken down tank. We also visit a forward firebase where a friend's father was killed in an ambush when his wife was pregnant with my friend. I took a photo and sent it to him. There was a small area where locals lit incense. We then went over the DMZ and visited the Vinh Moc Tunnels. Amazing.
We finished back where we started: the JW Marriott in Hanoi. What we didn't know was that the communist party was having a convention at the nearby conversion center. Security was very high. We were scared to death, with my brother being a former Army person who fought them. What happened was the opposite of what we expected. In Hanoi, Hue, Quang Tri and Da Nang people would stop us and ask if they could take a picture with them. People would send over deserts and discount our bill. It was amazing and, I think, cathartic for my brother.