Highlighting some used gear at B&H:
B&H has several great used Canon RF Lenses in stock, including the RF 15-35 F2.8, 24-105 L F4, and 70-200 F2.8 L IS lenses, along with the RF 1.4x extender.
A used Canon EF 300mm F2.8 L IS II Lens is available in the used EF lens inventory.
B&H also has a pair of used Sony Alpha 1 cameras in stock.
Canon RF 15-35mm F2.8 L IS USM Lens
Canon RF 24-105mm F4 L IS USM Lens
Canon RF 70-200mm F2.8 L IS USM Lens
Canon RF 1.4x Extender
Sony Alpha 1