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.
catties cutties cates cuties coatis cats cooties kitties caddies coatees coats cutis cades caids gaieties gates cadis cotes cutes cottas cuteys cutesy caddis gateaus cutesie gaudies caddice cuddies goatees kats qats cuts cots gats cads coots katas qadis gaits kadis codes gadis goats kites coeds kytes qaids codas coitus guides gaddis quiets quotes caducei codeias goodies kiddies kiddoes quietus
fatties patties tutties kitties tatties cutties jetties jutties chitties titties catties ditties hotties butties putties potties ties rottes fyttes mattes laities battues puttees settees dauties pities reties tates bawties duties cities lattes ghettoes whities lattice tuttis moieties buttes cooties pieties cuties booties beauties footies suttees sties mottoes dawties fouettes gaieties mottes totes deities lottes tides tis
cattie catty coati cacti scatt scatty cat