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.
gauds gads gaudies guids gadis gudes goads gaddis guides gods guts cuds gats gateaus cads qadis caids gutsy goods quids cades goats kudos gaits gowds kadis kudus qaids quods cadis gouts gates quads caddis goatees caddies goddess goodies cuddies gaieties cats cods cuts kats kids qats
bauds lauds yauds mauds gauds ads muds lades vatus gads heads quids nadas ghauts kudus feuds ouds mauts ludes rudds leudes leads padis bawds puds meads loads reads fades dados shads chateaus woads wadis udos tauts duds duads dauts sudds rads sudsy quads sadis leuds qaids raids fads kadis nudes fados caids ados maids quods judos bads gadis adds cades cuds readds hades jades lads naiades kudos qadis buds gudes fuds taus meatus guids pads aids naiads kneads cadis hiatus mads sades judas suds cads dads dadas beads deads goads saids tads toads beauts wades wads roads chads shades dudes gateaus
gaud gaudy gad gaddi gadi gaed goad gude guid guide egad