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.
sataras stars straws stares sitars sutras stairs satyrs strass strays satoris seaters satires stirs sautoirs satirise hysterias sautoires strews strows steers steres stores stress stours stroys setters stoures suiters sitters stereos suitors storeys souters stories sutures satirize sudaries cedars seders sudors seeders siddurs
sataras tuataras tars tarsi trays attars betrays hetaeras hetairas cottars trass tuateras guitars stairs stars straws sutras deodaras tetras yttrias mattrass madras tears sitars tares latrias matrass nutrias retears stares ottars taros strass strays daturas tatars toras tahrs wheatears
satara star satire satori satyr sitar stair stare starry