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.
barres bares bars barrows berries barrios bears boars bries byres bores brews braes burrs birrs brees bourrees buries boreas burros burrows borrows bureaus bris bras bros burs birse brios biros brays boras braze broos beers brosy brows buras boors brass brace burse braws buhrs briss brose biers brughs browse bursae bruise braise braize bourse burghs breeze breezy brassy hybris bewrays brassie
murres barres chirres tarres res rues haeres hares pries phoresy rees purrs reis currs peres lyres burros eyries myrrhs feres lures grues ores vires caries lorries sirras cares furies cereus gharries bourrees cherries dairies froes lares peeress birrs nares boreas kauries jerries heiress aeries meres drees cress lories fairies veeries morris corries grees frees mures byres wries varies prees press wearies trees zaires tories dures treys derris durras arras wheres whirries whores durrs seres worries chirrs chores pareos churrs sherries shires shores tires yirrs dearies ureas quires curies moires surras ires serries herries tress trues ares quarries dories dress brees sauries terras sirees charros murries pareus presa areas roes parries hires cries cirrus paries kyries ferries vireos cores cires larees heroes aureus bores prese greys cures carries preys duress caress lores sores pores purees surreys bries dorrs soirees braes pyres orris sarees errs juries gharris berries faeries cowries buries kerries crews diaries quaeres sirrees brews fares fries curries durries heres seeress sierras gurries fores gnarrs arris carrs rares fires mares peeries eyres zeroes murras pares dries gores aures nereis wares murreys derries hurries harries dares mores hirees parrs terries tares bares gyres burrs queries heresy mires tores whirrs torrs tries tyres trews sires morros whereas wherries wires perries chares charrs tres series dowries tarries choreas ceres churros shares sherris marries shirrs murrs shrews yores
barre barrow barrio bar brr brrr burry burrow burro burr birr borrow boar berry bear bare kbar