At age 29, Sidon Farris walked into his Los Angeles office as though he was still stepping through a dream that once lived between takeout boxes and sleeping bags. In 2019, he was sharing a one-bedroom apartment with five roommates and fielding client calls at the kitchen table while someone slept on the couch. Today, he runs The Onyx Agency, one of the fastest-rising agencies in L.A., operated by a 20-person team that brokers multi-million-dollar partnerships between brands and celebrities who