The classic sound of a metal spoon hitting a glass tea cup in a silver holder (podstakannik).
The gold standard for long-form train audio. Look for "ASMR Train Ride" or "Train Cabin 10 Hours." Many videos feature 4K visuals of rain on the window or snowy landscapes to match the audio.
Search for artists like "The Sleep Helpers" or "White Noise Baby Sleep." They have entire albums dedicated to rhythmic rail sounds. 3. The "Atmosphere" of the Ride