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.
dots doats dotes doits tots dits touts totes toots duets dados toits ditsy deets dauts dates didos diets dawts dodos dites datos duits ditas dattos didoes duties tootsy dittos dadoes dodoes diodes dauties ditties deities duteous dawties tedious tootsie doodoos doodies dowdies ditz dads tuts tits duds teds tads tods tats tets dadas titis ditzy deeds duads teats toads dudes tauts tides tates deads tutus
boots cots shoots tots dots soots roots pots oots knots mots moots lots loots coots bots jots hots hoots phots foots riots rots sots toots wots shots
dot dote dotty doty doted dotted