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.
beetles beatless butles betels bedels bedless bottles bedells beadles battles bootless botels butyls boatels buddles budless boodles buttals bodiless bootlace battalias buddleias battailous
beetles guideless kettles needles tittles betels hatless footles stiles pettles mettles butles cadelles bootless codeless pottles hideless littles metals battles vittles outlies motleys matless wheatless shitless whittles wattles tideless styles steelies nettles fadeless tules feetless shadeless dottles settles bottles retiles cuttles rootless guttles citoles mutules beatless toeless meatless knotless voteless toles metols mateless hitless rattles cuittles tieless coatless motiles gutless poetless stoles footless heatless tiles tootles netless kittles petals tales mottles fettles seatless ketols rutiles gateless rootles teles stales tattles sheetless deles wheedles fatless noteless steles dateless titles wattless witless shuttles