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.
cuts cutes cutis cuties cuteys cutesy guts cats cots cuds cutesie cutties coots cates coats cotes quits gutsy gouts coitus quoits quotes coatis quiets quotas cottas coatees cuddies catties cooties quietus cods gats kats cads qats kits kites kotos gaits codes quids cades quods cadis guids goats gates katas keets codas caids gudes quads kudus coeds kytes gauds kudos
beauts gouts shouts tuts tauts ruts puts outs nuts knouts muts mauts louts guts cuts bouts juts huts phuts ghauts buts pouts routs dauts touts uts shuts