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.
mogs mags mugs megs mocs migs moggies makos mocks muggs miggs magus mokes mucous mucosa megass mucose mucosae muggees megasse magueys mics mycs moxa macs makes micas micks mikes moxie mucks mucus macks
biogs bogs fogs hogs jogs cogs logs mogs nogs dogs togs wogs shogs