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.
filial filially flail fallal vilely fellowly
ilial filial telial glial pallial ileal chillily alleluia wilily lall daylily flail sillily hallal lily jollily lilo paleal lowlily halala fallal oilily slily leal holily woollily molal shillala
fil fail faille fila file fill fille fillo filly filo foil folia folio