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.
pallor pillory pallier paler puller pylori poller pillar palier peloria pilar plier polar poler puler peeler pooler
pallor lory luller collar colour calory floor muller pillory iller jailor heller roller puller sailor lour siller holler bailor dollar valour dolour biller duller faller taller baller tiller culler willer queller sheller glory feller filler seller loller clour color caller knoller miller pillar huller giller velour pylori poller cellar fuller hiller lore fluor galore chiller killer toller couloir teller tailor fueller flora dueller flour dolor valor dialler yeller
pall pally pallia pal pillow spale pill pulley pial pollee peal pillowy pail pawl pale paella poll paly pull paleae opal palea spall