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.
pernod paranoid pyranoid pyrenoid pronto preened pronota preowned print perennate parent pruned prawned preunite
pernod rand pyranoid paranoid learned grand kerned rind rynd barned crinoid brand burned turned durned churned sorned yearend reearned earned errand girned rend mourned kirned crunode grind corned cairned coronoid frond gerund horned trend darned warned serranoid yarned pyrenoid yearned
pernio pereion pereon perinea perron pirn porn porno porny prone prune operon