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.
reassures rasures reissuers rezeroes rosaries roseries rasers
assures fissures reassures scissures chaussures issuers leisures masseurs measures rasures reissuers seisures tussores tussurs usuries chasseurs
reassure reissuer preassure pressure treasure treasury tressure