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.
whities whites whiteys wites whits wits widdies whids wides waits whets whats wheats wadies woodies whidahs waddies wets wats weds wots wades wadis watts weeds weets widows whydahs
laities whities deities cities pities ties cutties whiteys kites gaieties jetties mitis reties cites rites cuties catties tutties mites jutties suites dauties bawties putties dites duties tides titis wites sites sties gites kitties writes patties beauties pieties booties boites footies bites cooties moieties potties butties fatties nites zitis dawties didies ditties tatties tidies titties whites hotties chitties tis its