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.
leisures leasers lessors lacers lasers losers
assures rasures measures leisures chaussures reassures fissures seisures scissures reissuers chasseurs suras issuers diseurs seizures tsuris caesuras suers masseurs maiasaurs tussurs sauries seres usuries azures desires poseurs sores cesuras sours tussores tsores sires