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.
belier bullier bluer baler boiler baller biller bolero bawler bowler bailer biliary blur blear bolar bailor bleary blurry bulghur
lier palier shellier lowlier holier wilier haulier vealier slier shoalier woollier dallier mealier relier collier roilier bullier flier jollier woolier eelier belier sallier pallier hillier jowlier plier millier shalier rulier chillier coalier sillier rallier oilier tallier lire railer baller leer biller filler boiler heller mailer realer peeler liri luller hiller galere bailer dialer vealer iller fueler nailer raillery flair flir haler sailer hauler puler knoller killer healer tailleur cholera helleri yeller shoaler sheller ceiler viler wooler feeler seller whaler wailer toller tiller teller taller duller bawler dueler filer glair fullery oiler valuer poller paler bolero coiler gaoler howler roller ruler miler siller sealery lair caller mewler hailer giller foliar veiler gallery reeler muller mauler miller puller culler dialler blear dueller fleer celery jailer bowler fowler faller coaler cooler couloir heeler huller haleru poler loller wheeler clear fuller feller hellery gluer holler liar lira queller lehr fueller pooler fouler lear bluer kneeler moiler sealer dealer tailer taler volery tiler toiler tooler waler willer colliery chiller choler foolery gluier baler yowler
belie bel belay bell belle bellow belly below abele abelia obeli obelia