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.
tit titi toit titty dit tittie tut tet tot tat duit tout dite doit tidy tied tate tote dita teat tutu taut tide toot tutty tutee tatty ditty ditto teiid dotty tutti deity datto dautie dawtie tattie tattoo