Familial rhymes with:
epithelial, congenial, cranial, daniel, epithelial, fanueil, genial, granule, mcdaniel, nathaniel, octial, patrimonial, spaniel, spaniol
Familial sounds like:
family, fanelli, faneuil, fanueil, faunal, fehnel, female, fenella, fenley, fennel, fennell, fennelly, final, finale, finally, finella, finelli, finely, finlay, finley, finnell, funnel, funnell