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.
aerier eerier eyrir error
wrier parrier charrier burrier querier barrier tearier frier sorrier brier hoarier leerier merrier carrier trier airier beerier prier burier worrier harrier courier currier moorier hurrier tarrier farrier wearier hairier charier aerier verier drier firrier varier crier gorier cheerier furrier mirier fierier quarrier learier terrier warier wirier marrier eerier curer tearer borer darer fearer hearer derriere purer searer parer career farriery sorer briar ruer frere truer lurer warrior friar rearer poorer hirer fairer corer tourer curriery shearer prior sourer rear freer barer wirer nearer furriery eyrir airer surer direr firer rarer dourer bearer farer arrear briery pourer burrer drear dearer fuhrer marrer torero wearer roarer orrery soarer carer sharer prairie fuehrer yarer