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.
sondes sounds sundews sonnets sundaes sneds sands sends snoods zounds scends synods senates sonatas sennets sienites sanities sinuates snots snits sonnetize snoots snouts saints suints santos scents cenotes sennits sanitise sanitize
mondes sondes duendes fiends nets randies lands naiades condos genets rounds candies nods indies honeydews nides vandas bonnets montes bends nudes maenades viands canids gannets bunds bannets endues funds pandies dandies monads bennets nodes lunets ponds mantes sundaes shindys shends rennets wounds wends rinds undoes tondos pounds tendus teinds fonds hinds minds sonnets binds kinds sands sneds menads ranids nonets mondos poinds neddies synods fondus maunds lindies sends rondos fundus vends ands maenads bonds anodes sennets gentes bendees lends bendys nudies fends tenets punnets dynodes shandies hands contes vendees wynds ends rends pandas noddies monades indues bands mends bandies vendues hounds mounds hondas founds wands quintes finds kentes bandas linnets mehndis monodies bindis rynds fondues hymnodies scends pointes condoes antes pends shindies zounds winds undies tends gonads kendos denudes maundies pontes sundews sounds bounds jennets rentes rands yentes
sonde sand sandy send sned snide sonata sonnet sound sundae sundew