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.
sudsed sadist saddest sawdust seduced sawdusty seediest
sudsed disced tissued caddised dissed dosed dossed doused dowsed tawsed teased daisied tossed toused adzed badassed headset iodised poetised wadset