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.
dogs dags dugs togs docs digs doggies docks degas dagos decos togas dekkos togues decoys daggas dagoes degauss doux tegs doxy tags daks tugs dioicous decks dekes dicks dikes doxie dukes dykes tacos teggs dawks deoxy tokes ducks
biogs bogs fogs hogs jogs cogs logs mogs nogs dogs togs wogs shogs