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.
duits dits dites duets dauts ditas doits ditsy diets duties dittos deities dauties ditties dots duteous tits tuts ditz duds touts doats dates deets didos datos toits duads titis dawts dotes tutus ditzy dudes tauts tidies dattos didoes tuttis diodes tutees didies todies deutzia doodies teddies toadies titties tedious toddies dawties tutties dowdies daddies dads tads tats teds tets tods tots
suits duits quits uts its tuis mites gaits kites quoits utas beauts baits ditas huts nuts lutes coitus zits bits phuts dites juts butes cutis gites raitas pits guids gutsy ghauts aits toits shutes shits outs chits wites lits whites writes mitts tuts titis zitis routs rites dits mitis nites dauts suites puts kits doits situs knits gits bitsy quids butts nutsy bitts etuis guts autos pouts muts fits buts riots ditsy knouts litas pitas quiets gouts mutts jutes bouts boites cutes fiats bites sites cites writs routes ruts nits sautes mutes cuts louts mauts diets putts hits tauts duets tits sits touts tutus suets utes waits whits wits chutes shouts shuts
duit dit dueted dittoed dauted quitted edit adit duty duet doit ditty ditto dite dita diet deity dautie daut suited dieted doited duetted