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.
cured curred cred curd curried cried cored cared creed curdy curet credo curate quired caried curite crud curt queried cord curette queered carried card quarried crowd gourd gored crude greed carte cruet guard caret crate court caird create corody greedy crowdy cardio gourde croute cardia quarte garred carate cruddy cowrote cardiae corrade crowdie cowrite corrody querida corrida corrode cart crit grad grid
cured soured lured mured toured poured loured dured urd red aired parried haired greed brede caried buret veered furred garred hared faired redo cried freed preed queered peered tyred pored quired mired gyred ferried rared married redd knarred reread birred cared erred jarred curried parred tried berried queried foredo dreed uredo whored worried deaired chared tiered burred choired cheered churred teared sheared treed shirred shred tiaraed seared wearied dread tarred jereed purred wared trued burd soared lurid pureed whirred heired zeroed bred serried oared curred read feared cred neared guard gored buried curd geared marred hurried eared curdy creed tarried paired fried pared cored gourd credo hired jeered juried dared tired wried gnarred dried quarried reed gourde carried oread jerreed leered bread harried murid cered pried laired bored fired moored wherried breed waired tared curet purda fared aeried barred sired reared nereid turd herried teredo ired bared rede rued sciurid chirred varied whirried wired roared chaired surd sered charred warred chored sored shared nurd sheered shored shrewd tread yirred
cure cur screwy scree ocreae ocrea acre curry currie curr curio curie curiae curia crew core care screw scurry