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.
stade state staid stead steady stadia statue stet studdie situate stat stud stied sited steed sided sated stoat stood study sueded studio sodded sauted seeded sooted sotted seated sedate suited satiety sauteed stot
stade tad beaded toad tide laded loaded mutate outadd notate rotate etude outate staid stead woaded betide nutate tate vittate haded headed jaded cadet goaded guttate quietude leaded metate kneaded faded state waded shaded
sad sade sadi said satay seta setae staw stay stoa stoae stoai tsade tsadi