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.
toits tits tots titis touts doits totes toots todies tootsy tods titties toadies tootsie tats tets dots dits toddies tuts toads diets tides dites datos doats ditas tauts tates tutus teats duits ditsy duties dattos teiids tatsoi tutees tuttis dittos tidies todays tattoos tatties dowdies deities dawties doodies duteous ditties tedious dauties tutties teddies tatouays ditz tads teds
doits quoits toits its quotes knits botas lotus geoids baits aits lits botts loots mites lotos bots oots hoots knouts bouts roots routs dots pits nits phots titis moots kits votes iotas fiats mots fits gits boites gouts nowts shouts shots writs shoots shits rotos chits wits suits whits waits situs tots tootsy poets patois quiets diets dites pouts zits cotes sots rotes pots riots sites coots ditsy mitts jots photos coats pitas boats cots coitus biotas boots potsy jotas quits moats knots oats hots rots nites bits notes lots hits quotas gites bites kotos goats loids gaits footsy kites cites bitsy voids mitis bitts sits foots lotas suites rotas motes rotis rites writes ditas motts doats outs soots dotes litas tits louts raitas zitis shotts shotes duits shoats chotts wots toots wites dits whites touts zooids totes hyoids
toited toit tit tot tote totted doit titi tittie titty toot tout stott doited tooted toted stot touted