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.
taut tat tut daut tutu tate tout teat tatty tutty tutti tutee tattoo tattie dautie tit tad tet tot tatouay dita toad duty toit titi tote data toot datto ditto ditty dotty titty toady today
beaut ghaut haut maut daut taut at ut