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.
premen preman premune permian pearmain pyromania hypermania primine promine
foremen wiremen freemen choremen firemen premen preman choreman quarrymen airmen duramen foramen doormen carmen cerumen mermen germen barmen reman freeman foreman ferrymen crewmen dairymen jurymen draymen fireman wireman rumen chairmen ramen
premie perm pram preemie prim prima prime primi primo proem prom promo