How to change your controller's button configuration | Popular Science
Xbox + Switch players: here's how to stop the confusion and interchange the Switch Pro controller ABXY buttons to match Xbox's. Link in the comments. : r/XboxSeriesX
Gamepad Input
Remap controller buttons on PC with reWASD: change controller layout and remap gamepad buttons on Windows 10
Amazon.com: ISENPENK Switch Controllers for Kid Gift, Mini Controller Switch/Switch Lite/OLED/PC, Cute Eagle-shaped Small Joypad Handle Remote w/Wake-Up Turbo Vibration Macro Button Children Black B1 : Video Games