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.
carer career carrier corer crier curer curare currier courier curriery quarrier crore cruor curara curari gorier queerer
barer parer wearer rearer searer bearer carer hearer dearer nearer yarer shearer soarer farer fearer tearer roarer sharer rarer darer frere rare borer frier purer querier prier brier verier airier merrier fierier mirier lurer fuhrer curare hirer sorer varier jeerer tarrier drier sheerer cheerer charier wirier wearier truer tourer terrier merer warier gorier direr queerer career harrier parrier firrier burrier beerier corer sorrier courier aerier tearier hairier surer burrer marrer furrier hurrier moorier serer crier burier pourer carrier hoarier quarrier learier fairer barrier curer wrier eerier ruer sourer orrery airer farrier leerier poorer firer currier cheerier dourer torero trier urare marrier wirer worrier charrier freer fuehrer
care car screw scary carr carry core crew cure acari acre agree ocrea ocreae scar scare scarey scarry scree screwy