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.
stoat stat stot stout stott state setout statue situate stet stood sated stead stade staid seated sedate sotted stadia steady studio satiety stud
stoat tot tat toot shootout stat stott outeat tote nutate mutate metate guttate cutout vittate tout teat toit taut tate doat notate outate putout setout state toad rotate stot stout shutout
stoa stoae stoai satay seta setae soda staw stay stow toast toasty