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.
platted plated plotted pleated plaited pileated pelted palliated plateaued plaided pleaded peltate piloted palleted pelleted playdate polluted paletot plaudit plodded
blatted slatted platted flatted delated allotted slitted rouletted lated bleated galeated clotted gelated violated foliated dilated belated alated lotted plaited letted plotted related ciliated slated solated glutted bloated blotted salted slotted gloated cleated collated pleated palliated elated plated dilatate fellated dealated pileated reallotted halted valuated floated flitted filiated malted chelated
plat palate plait plate plateau platy pleat plotty splat