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.
chromo chroma chrome chromy charm chirm choriamb showroom
promo bromo chromo rom varoom chromy carrom brome chrome tearoom broom roam romeo room aroma barroom paramo groom neuroma primo prom vroom proem dayroom carom from chroma showroom
char chiro ochreae ochre echoer charr charro charry chary cherry chare chirre chirr chiru choir chore chorea churr churro ichor ochrea ochry