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.
planed plained planned planet planate plant pollened plaint pliant palinode pollenate pollinate plenty polenta
leaned reloaned planed cleaned loaned gleaned mullioned volante cloned cologned gland lined calando land ballooned lowland planet kilned planned realigned aligned soland beelined eland maligned clowned holland plained bylined aland bland julienned eloigned relined aliened alined eloined gallooned pollened reland lalland taloned