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.
muscid mucid mysid mused mussed moused missaid miscite moussed must maced musty misdo misadd missed mossed massed mustee messed misshod missuit musette
viscid muscid acidy acid sidh side mucid said hypoacid gneissoid resid cissoid suicide dayside deicide disced aside busied beside naysaid jassid cosied gussied quayside lucid missaid mysid biocide resaid reside seaside daisied decide diacid wayside
mus mouse mousey mousse mousy muse muss mussy amus amuse emus mums