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.
placer pleaser policer pulsar pulser plessor pleasure polyzoary
lacer solacer placer glazer ulcer slicer releaser policer pleaser fleecier glacier fleecer blazer leaser laser lacier chelicera
place palace palais palazzi palazzo pilaus pilaws plaice plays plaza pleas please splays