Closed backs work fine in the situation you’re describing.
Check out the reviews on amazon. There’s also a few websites like this dedicated to headphones that have reviews.
I’ve got beyerdynamic dt770 Pro, they’re closed back and silent when they on my head. I wear them literally everywhere, and I’ve sat many times in quiet coaches on trains with them on, with no complaints.
https://www.amazon.co.uk/gp/product/B0016MNAAI/ref=oh_aui_search_detailpage?ie=UTF8&psc=1