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.
siddurs stirs ciders stours sutras seders stairs sitars sudors suiters seeders stoures sutures souters suitors sitters satires sautoirs satirise sautoires stars stores steres stroys strews ceders cyders citers cedars straws steers stress strows satyrs stares strass strays sataras satoris seaters setters stereos storeys stories
siddurs fodders widders wadders tedders budders ridders nodders maduros padders madders ladders kidders gadders codders shedders chuddars judders duras redders chudders cheddars wedders udders dodders rudders odours dures mudders duros durrs adders bedders bidders shudders