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.
creme cream crime creamy cram gremmie corm coremia crumb grume carom grime carrom corymb crummy curium corium crambe crumby gremmy crambo gramme caramba crummie gorm gram grim grum
bireme creme rem rime dream arame prime berime preemie berme grume bream crime ream brume forme formee frame hareem harem cream brome grime maremme premie proem chrome
care core crew cure acre ocrea ocreae scree screw screwy