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.
slogs sawlogs slags slugs sulks silks siliquose siliquous sulcus slacks slakes slicks sleeks salukis selkies silicas silkies sulkies siliques
blogs clogs slogs duologs cologs flogs logs dialogs sawlogs clags algas plugs glugs slags flags slugs belgas blocs logos flocs lugs bowlegs gulags valgus legs vulgus gloggs lags telcos