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.
tods toads todies todays tots tads teds toadies toddies toits dodos touts tides datos toots totes dattos dodoes tidies diodes dittos teiids tootsy tootsie dowdies doodies tedious teddies duteous doodoos tattoos duds tets dads tuts tatouays dots tits tats dits dotes dites deads dadas tauts deets dados diets didos doats doits ditsy teats tates titis deeds duits dawts ditas dauts dates duads duets dudes tutus
bods mods woods sods rods poods pods ods nods moods quods feods goods gods cods hoods hods foods roods tods yods