Depends on where you're from and what accents you can cope with.
The School of Scottish Studies has produced an excellent double CD of Scots Traveller storytellers (Greentrax Records) and Pavee Point in Ireland have recently done one.
The best American examples I have found, Richard Chase and Ray Hicks, were issued on vinyl years ago by Folk Legacy Records and are probably now unavailable, but may be still found in libraries.
Jim Carroll