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.
virosis viroses viruses verses versus versos varuses pharoses pheresis veracious phoresies voracious frises fraises frasses frisees phrases varices
virosis pyrosis sorosis xerosis neurosis neuroses dieresis serosas crisis proses eroses viroses prosos roses arsis paresis pharoses borzois saroses soroses crasis broses xeroses merisis diaeresis pheresis diuresis
vairs viers vireos vires virus vrows