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.
toads tads tods toadies todies todays dads tots toddies teds tats tatouays dodos totes datos toits touts dadas deads dados tates toots doats duads tides teats tauts ditas tidies dodoes dadoes diodes teiids tootsy dittos dattos tedious tootsie duteous doodoos dowdies teddies doodies tattoos tatties daddies dits dots duds tets tits tuts
goads loads roads toads woads ods ads lads feods kneads mads moats quads geoids cades nadas modus wads cods bodes coats qadis gads fados quotas wades jotas fades voids odes beads ados nods ouds bods odds rodes sods yodhs hyoids shads chads woods reads toeas duads doats deads dados zooids sades jades saids nodus roods goats poods raids leads bawds pads gowds hoods geodes modes gauds bads quods heads hades nodes oats codes qaids maids padis bauds naiades sadis aids fads hods boats lodes iotas gods lauds loids tads mauds gadis cadis codas coeds dodos cads odas naiads rotas lotas goods pods caids readds rads meads kadis rods biotas moods sodas foods stoas lades dadas mods dads diodes botas tods wadis adds woodsy shades shoats yauds yods
toad toady toadied tad tod today toddy tody toed goaded loaded stade stadia stoat woaded