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.
gaunt gannet gunite cant cunt gahnite qanat canto quint canty quant count ganoid quinta quaint gunned kainit gained county quanta cannot quinte cuneate kainite kent
aunt gaunt daunt chaunt haunt taunt jaunt vaunt ant cant punt santo canty anta punty dunt quant lunet county chant suint saint want giant faint maund quint pant lunt manta meant paint panto peanut punto tanto chianti chanty shanty riant cunt ante jaunty banty rant count anti hant unit canto junto bounty aunty panty mount vaunty runt junta quaint leant runty janty fount hunt bunt qanat quanta taint unto manat shanti haint shunt
gaun gan gun gaen gain gane goanna guan guanay guano guinea gunny