They are becoming more common. Check the table on this page for a list. https://www.seatguru.com/charts/longhaul_business_class.php https://www.seatguru.com/c

They are becoming more common. Check the table on this page for a list. https://www.seatguru.com/charts/longhaul_business_class.php https://www.seatguru.com/charts/longhaul_business_class.php