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.
quits quiets quoits quietus quids quotes quotas qats guts cuts kits quads guids gaits quods qadis gutsy cutis cutes kites gouts qaids guides cuties cutesy coitus cuteys kitties cutties gaudies cuddies gaieties cats cots cuds gats kats kids
suits duits quits uts its tuis mites gaits kites quoits utas beauts baits ditas huts nuts lutes coitus zits bits phuts dites juts butes cutis gites raitas pits guids gutsy ghauts aits toits shutes shits outs chits wites lits whites writes mitts tuts titis zitis routs rites dits mitis nites dauts suites puts kits doits situs knits gits bitsy quids butts nutsy bitts etuis guts autos pouts muts fits buts riots ditsy knouts litas pitas quiets gouts mutts jutes bouts boites cutes fiats bites sites cites writs routes ruts nits sautes mutes cuts louts mauts diets putts hits tauts duets tits sits touts tutus suets utes waits whits wits chutes shouts shuts
quit quite quate quid quiet quoit quota quote equid equity squid