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.
launce lance lunes lanes lunacy lunies lanose lauans lianes leanness lawns lenes loans lines lense lunas leans leones llanos lianas lanais linsey lioness lionise lionize looneys loonies lowness
bounce jaunce ounce pounce jounce launce dunce whence rance hance bouncy runes pence tunes seance mince dunes fence ponce lance since fiancee chance once wincey quince faience nonce fiance nance science nuance menace unci wince jouncy tenace nice dance pinnace hence lunes yince
lain liana plane clan elan lane lauan lawn lawny lean lanai llano liane loan luna lune luny alan alane flan plan ulan