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.
groom grum grim gorm gram grimy grume grime grama carom gramme gremmy carrom gramma gourami gremmie corm cram
room broom groom tearoom showroom vroom dayroom barroom varoom rom broomy chromy carom chrome roam proem roomy from neuroma bromo brome prom chroma carrom chromo promo aroma