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.
glares glaires glairs galeres glories galores claroes claries galleries gluers claros clears glorias collars gaolers colures calories glorious gallerias colors clours collieries killers coilers callers coolers colours coalers cullers clerisy calorize colliers colorize couloirs quellers
lares blares flares glares yellowwares hollowwares milliares willowwares velures helleries collieries talars milreis lars fooleries failures clears lorries colures filarees fulleries glories phyllaries pillories lories flairs lures lears galores glairs calories galeres lyres glaires claroes voleries liars flurries dollars railleries claries tolars collars cellars laris allures velars claros galleries mylars soilures sealeries slurries larees lairs lores blears malars milliaries molars pillars polars celeries salaries
glary glare claro clary glair glaire glairy gloria glory gular aglare