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.
boreas boras bores bras bureaus brees boars braws bares brass bears buras bries braes boors brews brays byres bourrees brassy buries bourse barres bewrays berries brassie borrows bars burs bros bris buhrs braza brows brios beers birse birrs brosy broos biros briss brose burse braze burrs bursa brace biers borzoi burros bursae burghs bruise breeze brughs browse breezy braise braize hybris barrios barrows burrows
areas ureas whereas choreas boreas ras res faeries creasy forays braws gharries bears pareos wares erase aures raws marries koras gyres feres phrase bourrees cores series veeries praus fares arrays varias peeries larees harass byres rias curies liras ires bras lauras caries heresy mores wries surreys trees reis hoorays herries bares prase froes rais cowries crews brees rays gurries rees bries presa gerahs morass grues hires dairies frees cuirass quaeres grass mures kauries mbiras durras pores preys pries hirees ceres kerrias tores douras hydras treys dories cerias tress lures terries peres charas wheres sores tarries sarees soirees wires years shrews shires shears shares cherries trues parries whirries trass torahs press dries terais yttrias suras purees dears dures sirras nereis harries murries heiress sierras dares ores lories jerries frass vires ears cares pareus craws tares greasy hurrays wears drees peeress sears draws grays murres maras eyres horas prays derries queries meres greys fires nares kyries jarrahs brews cress pears varies buries eras braes muras rares prees praos heres seres brass horahs phoresy curries arras ferries bores serais sirrees bureaus durries worries grease bewrays hoorahs sires cires hears fears eyras crass grees nears lears arias sirees chirres auras norias furies cures quarries barres aeries quires juries gears lares crease murreys ferias fairies hurrahs heroes vireos fries moras buras haeres fores proas carries mares lores paras moires gores zeroes aureus rears dearies ares drays dress boras varas paries tears serries caress zaires brays tyres morays rase wherries hurries cries murras gyrase pares sirrahs mires eyries rues prese corries surras hares frays berries nairas derays kerries tres duress duras cereus trews tarres tires diaries dowries tries sauries toras dourahs roes lyres terras surahs lorries hydrase urase trays soras perries whores pyres tories seeress urease chares wearies chores sharias sherries shores tiaras yores
bore bare boar boor bora borrow bourree brae bree brew brie bureau byre