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.
kersey keirs kiers kerrias kerries kris kirs kors carse curse gorsy koras corse cruse goers greys gorse kurus creasy karoos grassy kaross crease grouse cressy cruise crosse course cooers grease crouse coarse kauris coerce creese kyries greasy queers kouros carouse karroos kauries quaeres queries queuers
horsey kersey jersey hearse surreys hydrase rerose ceruse purse pursy preys treys peruse prase murreys parse rise morose birse brosy ursae torose bursae burse erase bourse verse phoresy rase prose coarse course curse gorsy erose arse hoarse rosy horsy brose heresy cruse hearsay phrase frise rose carse pursue horse greys arise ruse arose gorse marse corse gyrase torse terse druse cirrose cerise rerise prosy gyrose prise prese porose perse nurse morse urase worse