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.
rumens remans romans ramonas remains romanos riminess romaines roominess romance romanise romanize
amens semens rumens yamens siemens omens hymens lumens limens humans remans cummins romans immense miens caymans caimans limns summons hemins gnomons lemans saimins muns amins cymenes mons mense gombeens gammons womans commons diamins lomeins daimons shamans demons damns bemeans limans gamins cumins mammons mans tameins hymns menus lemons mensa haemins somans daemons damans demeans tomans means yamuns