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.
adnate attenuate addenda audient autunite addend atoned attend attent adenoid attuned attained attendee
donate adnate iodinate coadunate patinate detonate tannate titanate odonate catenate patentee titanite hiddenite denote stannite footnote autunite detente dunite dunnite tentie attenuate patinaed retinite headnote woodnote