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.
feuar fear fur far fer faro fury fair fare four fiar fere ferry fiery furry fairy faery feria farrow faerie furrow feirie feriae fry fro var furrowy fir for froe very fora veer vara frae vary free fray frow vair fore vera fire vier
feuar ear shear wear tear dear souari sear rear pear near leary lear queuer quare guar gear hear fear euro bear sieur deair deary teary weary year