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.
coteau couteau cote cotta cootie codeia gateau coatee cot cottae coat cute coed code coda coot cate coude cutie quote cutey quota coati cooed cooeed goatee cattie cad cat cod cud cut got
bateau batteau coteau couteau gateau chateau tau tea toea beaut lutea taut teat