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.
floosy flossy floozy floosie floes fools floss filos flows folios filose fillos fellows fallows folious follows floozie flossie foliose felloes flus fils flies fells flues foals fleas fowls fills fulls feels flaws fleys files flews fuels fails flays fouls flees falls false foils fellas filles folles foleys follis fleecy falsie failles fallacy feeless fellahs fellies fillies follies phyllos villose villous
floosy floozy cholos tools pools nolos kolos cools jealousy hulloos holloos halloos fools flossy bolos loos blowsy blousy lousy lossy loose glossy mools polos solos wools shools
flooey flooie filo floe flow fool loophole