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.
fissile fossil fusile fussily fusil facile fizzle fusilli fusel fuzil foozle vassal vessel visual fuzzily
fissile missile sessile scissile mussily tussle messily loessial sassily rissole reassail rassle pussley fusile gassily fussily fossil bossily assoil hassle wrassle resile dossil assail wassail