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.
vials veals valse veils vales vills vails viols villas valise violas values phials villus voiles villous valleys villose fils viewless voles foils fails false foals files filos fills falls falsie filose fillos filles failles fallows fillies phallus volleys vowless ghillies flus
vials dials phials rials sials als falls veals hilus mills false hails galas nails also heals kails veils maills deals rales salsa foils quillaias fails palls pails soils gals zills fills bails filos rills viols coalas heils silos reoils nills goals kales balls sales miauls boils coils kills teals deils talas wawls dahls sills whales duals talls sauls whiles chills wails sals shauls sheals shiels dals shoals toiles yawls walls chiles tills taels lilos quails males kilos seals mils glias ceilis sails wills oils guiles cauls biles bales poilus palsy galliass aals coals talus dills fils hales milos koalas pawls halos meals mails mailes foals rails bills pales vails voiles valse gaols galls hauls diols pilis tiles ales calls jills alas bialis hills halls awls gales vills calos reales bialys noils quills jails balas balsa lalls nils vales pilus reals pills ills ails baals dales dulias tils alias bals miles gills moils pals zeals jouals peals ceils files mauls riels roils wheals wiles toils tales piles wales wauls nalas malls alls riles weals chiels chilis shales tails shawls sheilas shills bawls dahlias yills
vial vill oval evil voila viola viol villi villae villa vile vail veil vealy veal value valley vale voile evilly ovally