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.
waeness woeness wanness wanes wans wens wienies weenies wines whens weens wains weans whines winoes wheens whence whenas weensy wins wons whinnies whins winos winnows
dueness waeness woeness ness denes peones aeneus bennes benes gooeyness leones nowness fewness renews venues scenes dunness lioness feyness weenies nenes penes sheenies lowness vainness dienes genies tenues meanness hygienes coyness gayness keenness lenes finesse newness rawness genes wryness denies seines gneiss leanness wanness wienies sheeneys shyness ens