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.
nude nudie nide node nut nod net nidi nite need nada note nett nodi newt neat wynd kneed knout naiad neddy needy netty noddy knead nutty
coude gude lude nude rude dude de