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.
farers fearers farriers firers freers freres friers variers fuhrers farrieries friaries fuehrers furriers friars furors furrieries furores
bearers jeerers firers marrers hirers borers tearers corers fearers wirers fuhrers parers pourers lurers cheerers shearers tourers farers sharers airers roarers carers soarers wearers darers fuehrers hearers rearers curers burrers friaries careers prioress furrieries errors burghers criers priories marriers friers terrors furores rears tarriers curriers furriers terriers hurriers drears currieries barriers briers worriers derrieres prairies orreries arrears triers quarriers ruers crores carriers freres harriers curares driers buriers horrors variers priers mirrors drearies parures couriers parriers freers farrieries urares toreros queriers farriers jurors rares furors
farer fairer farrier farriery fearer firer freer frere frier