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.
fruiter fruitier fritter frater fretter ferreter frettier frotteur fioritura fioriture forrader fioratura fioraturae phratry
bruiter fruiter triter groutier reutter rioter ritter router writer fritter fruitier hurter courter cowriter critter curter gritter grouter rewriter troutier
fruit fruity frit ferity fritt afrit