Crackle rhymes with:
crackel, crackel, grackle, racal, rachal, cackle, crackel, grackle, hackel, hackl, hackle, jackal, jackel, jakel, kachel, mackall, mackel, racal, rachal, shackle, tackle, unshackle, yackel, yakel
Crackle sounds like:
caracciolo, cargal, cargile, cargill, carosella, caroselli, carousel, carrasquel, carrasquillo, carrousel, carswell, cerasoli, charcoal, chriswell, chrusciel, churchill, churchwell, circle, coracle, corkill, corsello, corsiglia, courageously, cracchiolo, crackel, cragle, crazily, cresswell, creswell, crichlow, criscuolo, crisslow, criswell, crosley, crossley, croswell, crucial, crucially, curiously, curricula