Alcan's rhymes with:
afghanistan's, afghanistans, afghans, bedpans, businessman's, c-span's, caftans, callahan's, caltrans, caravans, goodman's, greenspan's, intertrans, lifespans, lumberman's, meehans, pakistan's, rosecrans, rosenkrans, stockman's, tajikistan's, taliban's, talibans, tarzan's
Alcan's sounds like:
alaskans, aligning, aligns, alkanes, alkenes, alleghenies, allegheny's, allegiance, allegiances, alleging, allgemeines, allison's, allusions