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.
nereis naris nares nears noris norias gnars knars knurs noirs gnarrs knaurs nairas nairus narrows
reis nereis res gyres frise mires frees gurries brees ires furies varias wries heroes fires gores buries trois nares lorries barrios kris lyres quaeres pooris cures gharris arris marries bares boreas kerrias kauris cereus tories heiress diaries caress sirees aureus pyres arise peeries hares fares ares whereas sherris chores ureas terais dares serais prise bries eyres ferias hybris arias heres laris bourrees shris wherries greys noris juries murreys larees mores preys sauries zoris tarres tyres chirres pares mures parries prees purees cerise series sris derries dures tires tries wearies worries sharias shores curios areas paries aures rerise prese hirees sirrees sarees cries dowries zaires veeries tres durries cress sores bris queries faeries dress lories houris orris trews vires carries peris whores cheerios jerries herries kyries pareos froes bores brios rues ferries harries rise crews curries eyries peeress phoresy caries pareus murres cares lores rais pores hurries pries lares quarries keirs varies heresy berries soirees corries kauries fairies heirs iris vireos kerries roes moires gharries ores lures byres presa seres briss fries mares fores rees cores cires braes norias grees rias aeries barres cris auris peres paris haeres serries feres tores tress press dries cowries morris dairies treys grues zeroes ceres dearies cerias curies surreys meres dories rares loris murries hires brews seeress quires saris wares trios terries naris trees puris tares souaris priss drees trues yttrias derris weirs tarries sires wheres whirries wires perries chares cherries choreas shares duress sherries shires shrews yores