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.
datto dato ditto tattoo daut dado date dawt data doat dotty tatty ditty dawtie dautie tattie dad tit tot tod dit tat dot tatouay tet tut duet dita doty dote titi toot duad toed dido tote dite doit toad dead duit duty tout diet toit deet tody tate taut dada dodo teat tutu
datto att watt tattoo catty petto otto batt battu batty fatty ghetto jato auto putto latte matt matte motto gnatty natty patty potto rato dato lotto ratty ditto tatty chatty
datto att tatty tattie doat ditto dawt daut date matt dato data patty pattie pattee natty matte latte ratty batt cattie fatty batty battue battu batteau catty dautie dawtie ditty dotty tattoo watt