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.
deity ditty dit dite duty diet duet doit doty didy dita duit deet ditto titty deedy dotty tit did tet dot doughty dude tody dote titi teat dido dato died tide dawt date doat dead deed data tidy daut toit
deity jetty chitty whity titty netty gaiety kitty laity meaty mity moiety bitty nitty peaty petty piety pity city suety ditty whitey witty shitty
deity dit deet diet dita dite ditto ditty doit duet duit