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.
prior priory prier pareira parrier prairie parer purer parura parure poorer pourer
prior warrior error roar courier currier crore quarrier horror juror harrier marrier learier mirier moorier furrier frier briar prier furor priory airier drier aurora tearier firrier terror beerier warier wearier worrier charrier barrier carrier verier friar cruor crier gorier hoarier hurrier hairier leerier querier merrier furore mirror varier burier parrier frore wrier farrier sorrier eyrir tarrier fierier terrier eerier trier aerier burrier brier wirier charier cheerier
pro pariah peri prao proa prow puri pyro