Longshot rhymes with:
slingshot, buckshot, earshot, grapeshot, gunshot, hot-shot, hotshot, overshot, potshot, scattershot, slingshot, snapshot, upshot
Longshot sounds like:
lamaist, lanai-city, lancet, lancit, lanctot, langguth, langseth, languid, languished, lanzet, launched, leanest, length, lengthy, leninist, linguist, linked, linquist, linscott, linseed, lionized, longed, longest, longitude, longuet, longwood, lunched, lunged, lynched