The discovery of billion-solar-mass black holes within the first 500—800 million years of the universe has challenged monolithic formation models. Recent JWST and ALMA observations (2024—2026) paint a picture of a chaotic, gas-rich early universe where extreme accretion and feedback were commonplace. We argue that the field must shift from seeking a single "solution" to developing a diagnostic framework capable of distinguishing between multiple, co-existing formation pathways. We propose three broad channels : Chaotic Cold-Accretion Avalanches, Monolithic Direct Collapse, and Rapid Hierarchical Mergers. Each leaving distinct imprints on the kinematics, metallicity, and host environment of high-redshift quasars. We outline the key observational tests enabled by JWST, ALMA, and next generation gravitational-wave observatories to quantify the contribution of each pathway to the emerging population of early supermassive black holes.