There are train songs all over the modern popular and folk music landscape. Songs about trains, songs set on trains, songs that sound like trains.
I am one of those who find that sound of a train supremely soothing. Whether I am on the train, or it’s going by, I love to listen to it. As someone who doesn’t get ASMR in general, the experience its enthusiasts describe is very like mine of a train sound. I could babble about this for a few hundred more words but I won’t waste your time. So here’s a definitive tune, in a clip from the All Star Bluegrass Celebration: