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.
synods snoods sends snots sands sneds snouts santos sounds scends sondes snoots sundews sundaes snits scents saints suints zounds sennets sennits cenotes senates sonatas sonnets sanities sanitise sienites sinuates
nods synods hands maenads kendos bentos vends mehndis bands rounds pandas juntos ponds pends puntos ganoids sondes santos fundus quinoids bends fonds ends bonds bindis hondas hinds shends winds rinds wands tendus mondos teinds duendes lends centos pintos conoids bounds monads cantos mends binds snoods sends ranids bendys knots fiends hounds gonads vandas kinds pinots wynds ands maunds condos anodes finds canids funds viands founds fends menads fondus nodes bandas lentos lands pantos rynds nodus rends snots minds contos mounds pounds rondos mondes rands sneds poinds scends zounds dynodes bunds tends tondos sands wends wounds sounds shindys
synod snood snoot snooty snot snotty snout snouty