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.
freers farers firers freres friers fearers fuhrers furriers fuehrers farriers friars furors farrieries furrieries furores variers friaries
freers careers burghers buriers burrers farers farriers fearers briers firers friers fuhrers variers borers carriers quarriers curers lurers marriers parriers priers roarers darers drears tarriers terriers tourers wearers worriers sharers couriers hearers rears curriers arrears airers ruers freres fuehrers furriers barriers harriers hirers jeerers bearers hurriers carers criers corers queriers marrers parers pourers rearers soarers derrieres driers tearers toreros triers wirers cheerers shearers
freer farer firer frere frier referrer reverer