Shannon/Ireland generally
Let's face it. In Ryanair's world we are too small for them to "develope" markets.
This w/e I travelled Marseille - Rome and back, Thursday/Sunday. Only about three empty seats both ways.
Aircraft, a brand new 737/800, originated in Lisbon, did the Mrs-Rom rotation and then back to Lisbon. Three times a week Winter, seven times, Summer.
Based in Lisbon, because of an argument with French social security, this is what Ryanair see as the future. Two large cachement areas, one aircraft, one crew.