Largen rhymes with:
bargain, dargan, gargan, hargan, jargon, sargen, vonbargen, bargain, borgen, dargan, dorgan, gargan, goergen, gorgon, gorgone, hargan, horgan, jargon, kollmorgen, morgan, morgen, morgun, organ, sargen, sorgen, steinbergen, vonbargen
Largen sounds like:
lairson, larceny, larcom, larijani, larison, larkin, larrison, larsen, larson, larsson, laursen, lorson, luerssen, lyricism