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.
fear feuar far fer fere fiar faro fare fair feria fairy ferry fiery faery feriae farrow faerie feirie fur fry fir for fro var fore very free vary vara frae four frow fire vair fray froe veer fora vera fury vier firry foray furry varia veery
bear ear shear wear tear dear sear rear pear near lear gear hear fear year ar er