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.
fairish fresh frosh farouche foreshow
fairish noirish whorish sourish perish parish orisha nourish moorish marish garish queerish currish girsh boorish boarish bearish rishi poorish wearish cherish
fair faerie fairy feirie far fir