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.
prude proud pride perdue parade pardee perdie pardie prod pard purda pried prate pardy perdu preed pored pardi pruta pared perdy pirouette paired pretty protea parody pyrite pirate purdah pardah poured pureed parred period purred protei peered prutah peridia proette parried parodoi yperite priedieu part pert port prat
rude prude crude hydride trade joyrode deride boride gourde rede brute burdie erode irade charade bourride hayride gride bride merde pardee perdie pride fraud birdie trued rode barde cruet proud crud corrode brede corrade ride virtue horde joyride grade rued rudd maraud parade pardie perdue sarode druid tirade trode weirdie shroud