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.
terriers tarriers triers derrieres tearers terrors driers terrorise terrorize tourers drearies darers toreros drears
briers furriers triers friers terriers farriers queriers hurriers tarriers curriers criers carriers harriers couriers marriers parriers priers quarriers barriers variers worriers buriers driers fuhrers freers rearers arrears freres jeerers lurers airers soarers wearers sharers bearers prairies tearers hearers corers orreries ruers roarers rears parers friars hirers carers derrieres burrers cheerers borers careers furrieries farers pourers darers briars drears marrers priors toreros fuehrers fearers warriors friaries tourers currieries curers priories wirers farrieries drearies firers shearers
terrier derriere tarrier tearier terraria terror