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.
valise valse false vials vails veals vales falsie values villose foliose valleys voles falls flies viols foals vills fails veils voiles veloce villus phials follis filose violas villas folios volleys floozie phallus villous follies fellies folious flossie floosie fillies failles fallows vowless ghillies ghoulies viewless
valise realise lis follies bialis mealies plies fellies gullies aaliis palais pilis killies bailies holies lyse filose lilies walies coolies willies doolies glias dulse dailies ghillies dialyse cilice aiolis sullies alias false jollies chillies chilies woollies wellies tallis dualize doilies delis xylose sillies relies pulse polis nellies polies poleis challies villose belies allies ballies blase gillies mollies colies caulis malaise coulisse bullies cullis bliss helios follis close lies gallies ghoulies collies billies cullies goalies folios bialies lase liaise callose fillies realize lose bellies quillais valse polios malice foliose else leis flies jellies olios falsie lollies lice muhlies hollies police plisse pulis slice coulis dahlias kellies dellies dallies molies dillies pilose doylies sallies pelisse sylis tallies tellies rallies wallies wheelies ceilis woolies chalice dollies challis chilis dulias chillis
vail vale valley value veal vealy vial avail oval ovally