Amazon.com: Nintendo 64 Controller for Nintendo Switch Online N64 Official
Retro-Bit Tribute 64 2.4 GHz Wireless Controller for Nintendo 64 (N64), Switch, PC, MacOS, RetroPie, Raspberry Pi and Other USB Devices - Classic Grey - Walmart.com
Hyperkin's Admiral is a wireless Bluetooth Nintendo 64 controller coming early next year - Neowin