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.
varus vars various virus vairs varas vrouws varias varies fiars veers fairs vires fares faros viers fears vrows verso verse feuars pharos vireos faeries gharris veeries furious farrows fairies ferrous ferreous gharries pharaohs pharisee firs furs
varus ars arse gnarrs pears ruse airs faros gars maars varas fiars gurus vairs lears knars pareus grues carrs vars rares aureus mars parous ferrous virus maras hairs gears carse hoars ares hears nairus crus torus tiaras shares tars chirus charrs tares charas wears dears wares urus roars truss tears cirrous porous naris saris laris cerous hydrous paras dares pars soars souaris lairs sears oars jars pharos aurous cares bares hoarse coarse gyrus hares mares haars ears parrs marse feuars rears fears cars paris guars knaurs liars fares kurus fairs rues mairs gaurs bureaus bears boars peruse gnars bars hearse nares cruse cirrus pairs serous lares xerus sorus parse deairs pares tahrs ceruse lars saros nears praus torous trues uraeus cereus wairs wars druse chairs chares taros chars chorus tarsi shears years
var vair vara varia vary vrouw ovary