Elfin rhymes with:
delfin, alfin, alphin, chalfin, delfin, golphin, alfin, alphin, buffin, chaffin, chafin, chalfin, coffin, cyrofin, daffin, dauphin, delfin, diffin, duffin, dystrophin, endorphin, gaffin, giffin, goffin, golphin, griffin, guffin, hanafin, hanifin, hannifin, kniffin, laffin, morfin, murfin, myotrophin, olefin, polyolefin, rofin, ruffin, sarafin, serafin, serfin, superfon, sutfin, sutphin, threadfin, tiffin, woodfin
Elfin sounds like:
elbaum, eleven, elfman, elvin, elvina