my suggestion is that you should wander from the beaten path---the songs you quote are generally played endlessly in plastic paddy pubs--almost like listening to a vuvuzela at this point.
here are some comparatively less travelled sources I can think of off the top of my head
-Al O'Donnell -The Johnstons -Sweeney's Men -Dubliners Celebration CD--lots of good songs--stay away from the early Dubliners stuff--the mine is exhausted -Colm O'Lochlainn Songbooks -Dolores Keane -Mary Black/Black family