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.
free frae froe fare fire fere fore feriae faerie feirie fer fry for far fro fur fir fury fiar four fora fray fear faro fair frow veer fairy feria ferry feuar fiery firry foray faery furry veery vireo
ree bourree bree free hiree gree laree pree puree saree siree sirree soiree dree tree re