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.
rota rot road rout root riot rote roto roti rhyta rooty route wrote riata rotte raita reata roadeo roadie rat ret rad rut rod raid rite read rood rode redo rato rate rete writ rowdy write rutty radio ready rodeo retie redia readd ratty radii
biota bota iota jota quota lota nota rota ta