Mr. Red -
FWIW I have been told the "Sir Roger de Coverley" (aka Roger of Coverley) is the only dance/tune in ECeilidh that is a slipjig. Traditionally it is quite distinctive

First of all. let's say that "ECeilidh" is not a satisfactorily defined term. It seems to have been developed by a range of dance promoters and dance bands to make the more old-fashioned sounding "barn dance" seem more up-to-date and trend setting. It has no repertoire of dances or tunes that are unique to it or make it distinct from other branches of English country dancing, though it does have its own core of popular callers and bands.

If Mr. Red was implying that Roger de Coverley may be unique as a English slipjig (and I admit this may not be implied in the post that I have quoted. It is not really clear) then the first book of dance tunes that I reached for of the hundreds on my shelves was The Charlton Memorial Tune Book (1956 Northumbrian Pipers Society) where I find the following tunes in 9/8 on :-
Page 1 - Boring With The Gimlet
Page 5 - I Hae A Wife Of My Ain
Page 6 - New Drops Of Bramdy
Page 17 - Andrew Carey
Page 19 - Jockey In The Hayloft
.... and so on. That should do for starters.