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.
tootsy toots tots tootsie touts totes toits tattoos dots tets tods tats tuts tits doits dotes toads ditsy doats dodos tates titis tutus tauts teats datos tatsoi dittos tuttis dodoes dattos todays todies tutees doodies toddies tedious ditties doodoos duteous toadies tatties tutties titties tatouays
footsy potsy tootsy knots photos bouts mots gutsy jots iotas nutsy totes shotes goats wots foots quoits moots lots louts lotas votes ditsy shotts shoats touts notes hoots toots dots coots outsay hots doits cots riots oots biotas rotas rotis rots soots poets quotes kotos boats toits gouts pouts quotas boots motes jotas moats rotes lotos pots bots knouts motts doats loots nowts rotos botas routs botts cutesy dotes lotus cotes bitsy patsy coats roots sots phots tots woodsy outs chotts shoots oats shots shouts
tooted toot tot booted totted footed mooted toited toit tote tout looted hooted ootid rooted sooted stood stot stott toted touted