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.
reassess wrasses rases reissues resews reuses resees recess raises reseaus races ruses roses razes rises rousseaus resays resize resows rooses razees rouses razzes resaws hyraces reseize rices risus
assess reassess possess pussies lassies gausses quasses gneisses josses lessees hussies jesses biasses mousses gessoes bossies busses bosses tusses tosses basses posses chesses reissues chasses wusses passes gussies poussies tassies esses cesses cusses sasses sissies dassies dosses sises losses missies pisses hisses musses lasses messes isseis wisses sisses loesses sassies disses susses tissues tasses masses hissies fusses chausses cissies guesses cuisses mosses pusses asses fesses gasses wrasses nesses wussies kisses issues misses fosses lassoes tussehs yesses
reissue wrasse ureas tress dressy rears greasy grassy grass cressy cress creasy crease crass frass brassy brassie brass areas grease press dress trass tressy urease ras res