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.
county count cunt conto canty conte connate cuneate connote coontie cant coned canto condo gaunt candy quant quint quinta quanta quaint gunite conoid conned coined cannot quinte coigned conidia quinate quinnat
aunty bounty punty county runty jaunty vaunty banty tenuity panty sanity janty gaunt daunt quint chanty unit unto minty punt painty mount aunt lunt junto suint linty taunt ninety count shanty jaunt shantey canty vaunt vanity tenty dainty maundy nutty cunt hunt quant chantey lunet unity junta chaunt runt bunt punto annuity fount snouty lenity dunt haunt pointy undy shunt
con coin cone coney coni conn cony coon icon coquina scone