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.
dawties dauties dates dawts duties ditties tatties deities dowdies daddies tates doats tides dotes diets datos dites dauts tidies didies dadoes diodes didoes dattos todies toddies teddies tutties toadies titties doodies duteous dots dits tets dads tits tats ditsy doits teats deets dados ditas dudes duits totes toits deads tauts dadas duads didos titis deeds duets tutees dittos dodoes todays tatsoi tuttis tattoos tedious tootsie
bawties dawties ties jutties potties pieties catties cooties cutties kitties dauties moieties reties howdies sties deities dowdies tatties titties whities wites cities jetties hotties laities rowdies cuties wytes fatties butties booties beauties patties bawdies gaieties pities putties footies ditties duties tides tutties wides chitties tis