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.
fonts founts fonds faints feints fondus founds fondues finites fantasy phonates fantasie fends finds funds vents fiends fundus vaunts phantasy phenates vanities
bionts wonts fonts bonds bints pontes pantos gannets jennets cantos nowts notes bunts quinnats quintes pants gentes nits nuts vaunts kentes juntas knots giants counts lentos mantis intis bennets pintas bents qanats montes nets cantus rents knouts dents yentas donuts dunts santos taunts tenets sennets centas tints snots chants pints chiantis shantis wants rennets puntos nonets runts mantas cents points contes lints haunts peanuts snits gnats sonnets lunts daunts rainouts haints hints bannets ants antsy hants gents hents founts keynotes feints binits mounts quants fonds faints chaunts genets units joints pintos contos hunts pinots aunts bentos kainits juntos antes knits cants bonnets cunts quints mints shunts quintas runouts punts ponds saints mantes cenotes paints sennits rentes connotes rants manats punnets linnets antas vents doughnuts lunets snoots snouts suints pointes denotes dints centos chints taints scents teentsy tents jaunts antis yentes
font foined fond fondu fondue found fount