Nebula rhymes with:
fibula, curricula, diverticula, fibula, formula, scapula, temecula, ahola, angela, aquila, calendula, curricula, diverticula, fibula, formula, gisela, gondola, hatala, hautala, hietala, hyperbola, ketola, mahala, mahalah, mandala, mengele, methuselah, pamela, parabola, peninsula, pergola, romola, scapula, seemala, temecula, theola, ursula
Nebula sounds like:
nabil, naively, nambla, napoli, naval, navel, nebel, nepal, nepali, nepl, nepool, neuville, nevala, nevel, nevil, nevile, nevill, neville, newbill, newville, nibble, nimble, nimbly, nipple, nobel, nobile, noble, nobly, nouvel, nouvelle, novel, novell, novella, novelli, novello, novelly