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.
taxied taxed taxite ticced toxoid tuxedo tackiest tickseed dioxid dioxide degassed
taxied exed taxed dioxid raxed oxide nixed loxed coaxed mixed hoaxed hexed vexed foxed fixed tuxedo taxite cosied boxed myxoid toxoid faxed dioxide sexed poxed oxid maxed cozied coxed guised gussied axed axite bauxite waxed
taxi tax taigas taxa ataxia ataxy staigs