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.
gannets cants gahnites cantos quants cantus qanats ganoids gunites candies kainits canities quinnats kainites connotes cunts contos counts gonads kentes canids contes quints conatus condoes quintes
bannets rennets jennets bennets punnets sonnets gannets sennets bonnets linnets nets genets quinnats lunets minuets nonets neats netts sennits newts tenets