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.
female fimble fumble family famuli fumuli foamily
male tamale female mole camail gamble maile mail fimble mealie haemal hamaul humble hemal nimble ramble mammal rumble sambal small domal gimbal meal mile timbale tumble wamble chimley jumbal gimmal mall hamal tymbal amble timbal jumble maul hiemal bumble bummalo email fumble mule tombal hammal wimble gemmule amole comal kamala mumble ramal remail cymbal simile smile tamal shamble