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.
stanes soutanes stones stance stains sadness seitans cetanes stuns stannous sootiness stenos stanza satins setons sedans steins saddens sateens soudans seediness soddenness suddenness soddens suddens
butanes stanes cetanes phytanes soutanes soddenness bawdiness attains dunness fatness cotans gitanos dines dynes ratans goodness goutiness townees rowdiness headiness oddness tains stance rudeness tans stains neotenies ratines dueness ruttiness mateyness medians fitness seediness redans tunnies knottiness badness sedans radiance nudeness laitance codeines riddance loudness gaudiness kidneys ketones ruddiness wideness tautness tetanus titaness tenues redness weediness voidness detains witness routines dedans wittiness retunes woodiness chutnees shadiness soudans sheitans duotones whatness moodiness suddenness haughtiness doughtiness dittanies cuteness pettiness matiness sootiness muddiness readiness townies retains retines ketenes litanies dunes tones quietness liteness ratanies atonies betonies reattains tennies dienes botanies pittance quittance lateness attunes cattiness lewdness tawnies patness denies donees dans tines tonnes beadiness tunes rattans nuttiness butenes pottiness jitneys battiness voidance dance betaines tynes tineas toonies madness dawns atones iodines mutinies denes patines hotness guidance neatness fattiness deans hiddenness donnees mutines retenes dottiness jettiness tansy reediness radians stones dowdiness neediness rootiness sadness matinees giddiness retinues seitans meatiness tawneys poutines leadenness detinues mootness titans nattiness meetness tattiness detainees redenies tetanies tidiness muteness rottenness bittiness wetness whiteness witans witneys woodenness deadness chattiness chutneys shaitans shoddiness
stane stain steno stone stoney stony stun