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.
denote dent donate dunite tentie denude denned denied deaned dinette deigned dunnite dint tent dunt daunt donut tenet tenty dainty tenuti tenuto tannate tenuity tonette doughnut
connote keynote cenote denote note not antae hyphenate conte donate tannate cannot minute enate mannite neonate vawntie canoed senate dunnite node unite snoot shantey untie tentie dynode dunite lenite sente pennate quinate quinte ruinate rente pointe pinnate snout reunite ante phonate nite coontie vauntie gahnite connate zonate sienite knot kainite anode innate nota lanate binate auntie gunite kente phenate lunate mentee monte pantie pinite pinot rainout nowt snot knout finite runout chantey yente
den dean dene deni deny diene dino duenna odeon