Cleanser rhymes with:
daenzer, denzer, enzor, krenzer, menzer, penzer, quenzer, tenzer, daenzer, danzer, denzer, enzor, ganzer, glanzer, inzer, kinzer, krenzer, lanzer, linzer, manzer, meinzer, menzer, munzer, panzer, penzer, quenzer, tanzer, tenzer, wanser, wanzer, windsor, winsor, winzer
Cleanser sounds like:
challenger, challengery, clencher, clincher, clinger, cloninger, clunker, colonizer