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.
fliers flirs filers flairs fleers fallers fullers fowlers fuelers fellers feelers fillers flurries fuellers floras fluors flours floors flares fooleries fulleries valuers vealers veilers voleries filarees failures fluoresce phyllaries valors velars valours velours velures valorise valorize valorous velarize
liers ralliers hauliers reliers dalliers jolliers pliers fliers milliers colliers beliers talliers salliers howlers vealers boleros fullers liras voleries healers quellers nailers heelers jailers hullers pullers helleris collieries knollers millers milers lollers mewlers helleries rollers fillers ceilers boilers bowlers killers couloirs fuellers fellers bawlers balers mailers yellers cholers chillers willers whalers wailers tollers tillers tellers tailers duelers dialers coalers sillers sealers pillories glories fuelers sailers claries gaolers talers polers hailers mullers milliaries poolers flurries galeres lehrs lories galleries flairs moilers pollers liars feelers reelers gillers hellers oilers railers fleers bailers glairs fooleries hillers hollers billers clears veilers filers cullers lears coilers haulers halers railleries fulleries flirs glaires callers fallers leers blears valuers celeries fowlers maulers gluers lorries kneelers salaries coolers lullers pulers lairs slurries calories ballers peelers sealeries rulers sellers dealers diallers duellers tailleurs phyllaries tilers toilers toolers walers wheelers woolers choleras shellers yowlers
flier filer flair fleer fleury flir foliar livelier