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.
coed cooed cod cooeed coda cued code cote coude coteau cootie codeia coatee cottae cot cud god cad couteau cadi quod coot caid coat gaed goad cute cate cade good gowd caddy coati cotta cuddy cutey cutie goody quote
booed hoed coed cooed looed mooed hypoed pooed toed wooed shoed shooed ed od