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.
bored bred bread bared board brede breed burred barred birred borate bready buried boride bard bird brad berried burd bort bourride brood broad bride barde brute borty buret braid beard boart beret berate byroad burdie barite birdie baryte broody barret hybrid biretta beretta burette barrette berretta birretta brat brit brut
cored shored moored whored pored bored gored sored chored red marred jeered cured breed ford redd eared chord gourd whirried barred ired creed fared read seared waired cared board lord horde aired curried bread forte hired pried gheraoed roared geared quarried parried shirred berried cered jerreed neared married tiered poured chaired tread wired zeroed deaired tarred dured teared charred soared chirred tried churred sheared shred dreed tiaraed torte heired hared jereed faired purred loured parred fiord juried oared erred wordy cried wried wherried caried warred nereid hurried peered reread fordo paired mured rede cred rued greed harried toured orad burred tired rared veered cord feared serried tarried ferried buried lured leered reed gyred fired curred haired carried jarred bared aeried queried mired herried laired birred quired furred redo credo varied sord brede treed oread uredo pared foredo hoard sired garred queered teredo wearied bred knarred pureed gnarred preed fried tyred ordo dried choired tared word dared dread worried chared soured whirred cheered reared wared shared sheered freed trued shrewd sered yirred
bore bare boar boor bora borrow bourree brae bree brew brie bureau byre