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.
fellahs fellas fells fellies felloes fellows feels falls flaws fuels fills flays fulls fleas villas filles follis folles fillos follows feeless fallows fallacy fillies failles follies fils flus floss fouls filos floes foils vills flues fleys flows foals veils flees flies flews veals fails fowls files fools flossy violas floosy foleys folios ghylls villus folious phallus phyllos valleys villose villous volleys
hallahs mullahs challahs fellahs zillahs mollahs nullahs wallahs selahs paellas hulloas chalahs fellas blahs halloas holloas challas moolahs hollas quillais hilloas mullas allays wallas villas scillas galahs ollas callas cullays chollas las
fella fellah fell felloe fellow felly