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.
jowlier jollier jailer giller jailor
lowlier jowlier lier shalier tallier wilier jollier pallier slier sallier howler roilier woollier shoalier rallier haulier hillier oilier vealier mewler coalier fowler holier bullier flier mealier eelier millier sillier rulier relier plier palier collier bowler gluier bawler belier colliery dallier waler woolier chillier shellier yowler