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.
tatty tutty titty tat tattie tattoo tatouay taut teat tate toady dotty tutti ditty datto today tittie tot tut tet tad tit doty toad toot toit tody dato tidy tote titi duty doat dita date data tout tutu
fatty chatty batty tatty ratty patty natty gnatty catty att satay potty rutty matt battu paty nitty laity putty matey bitty batt gutty jetty witty kitty chitty beauty watt peaty knotty ditty latte jutty petty netty butty matte cutty tutty nutty jotty meaty datto titty dotty bawty shitty
tattie tatty tattoo tat att batteau patty datto matte batty tate teat battu titty battue tutty pattie latte ratty pattee tatouay cattie batt fatty taut matt tittie catty tutti natty watt