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.
snootier snoutier snottier sinter santir snider santoor sandier saunter santera santero santeria sonneteer sender sander center sentry sonder sunder santur senator santour sounder sanitary sanatoria sanitaria sanitoria centra centre cinder sundry zander
snootier keynoter daintier snottier runtier rentier pointier paintier mintier lintier gnattier knotter nuttier noter nittier nettier nattier knottier jauntier snoutier tentier
snoot snooty snot snood snotty snout snouty