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.
tet teat tit tut tat tot ted toed toot tote diet tutu tout duet tate tide dote titi dite toit date taut deet teed tied teddy ditty titty tutti datto teiid tatty tutee ditto tutty dotty wyted dautie dawtie tattie tattoo tittie