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.
phylum phyllome phloem phellem filum flume velum folium vellum volume
phylum lum velum volume helium hilum ileum illume glum vellum oleum pileum plumb plumy cilium solum telium kalium flume folium gallium blume alum allium ylem luma ilium filum glume milium pallium plum plume relume slum xylem chillum
phyla phylae phyle phyllo ghyll phalli aphylly