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.
stare star stere strew sitar store stair striae stereo satara suture satire starry storey stoure stourie stir sautoire stria straw stour sutra satyr strow story stroy stray steer souter strawy stoury sitter seater setter satori suiter sadder sudary suitor sautoir sootier sudaria hysteria
stare tare tar titre store suture tire tore couture mature tyre attar attire future tree dietary wheatear guitar true mitre nitre ottar padre retire rotary satire stair litre cadre madre goitre trey tarre star quatre taro tahr dearie dare feature tear votary nature cottar metre notary outre retear retore satara sitar stere strew datary tatar tuatara shoetree
satay seta setae staw stay stoa stoae stoai