I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
azures assures acerose acerous
assures measures scissures leisures seizures chaussures seisures rasures azures reassures fissures cires pessaries seres suras roseries sieurs surreys cereus issuers masseurs resource maiasaurs chasseurs sours maiasauras caesuras zaires rezeroes ossuaries rosaries series cesuras tzuris reissuers causeries tussores sauries serries soirees messieurs hosieries sores desires seeress poseurs sarees miseries tsouris douceurs ceres bizarres source suers sirees zeroes sires diseurs tsores tsuris tussurs usuries sirrees boiseries