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.
ratine retine routine retinue retinae rutin ratan reattain ratoon retain retina ratany retene ratten radian retune ratton rattan ratteen rattoon radon redan redone rhyton ridden rotten written
tine ratine patine routine retine poutine mutine tin reattain butene latino butane retinae rutin attain iodine matin ketene soutane latina diene retain betaine mutiny tiny tyne aedine retune lattin mattin patina ketone phytin matinee gittin chutnee retene cutin biotin codeine attune stane satin tain phytane stone tone retina lutein patin detinue tune detain atone witney patinae jitney dine retinue cetane satiny stain stein zeatin detainee duotone chitin tinea chutney
rat radii trait rarity prat krait grat irate radio raid raita rate rato ratty reata retie riata roti braid brat bratty frat crate grate orate prate drat urate