Are your Joy-Con not connecting to your Switch? These fixes should help troubleshoot the issue.
What to Do if Your Joy-Con Won't Connect to Your Nintendo Switch
How to Fix Joy-Cons Not Responding Nintendo Switch
The best Nintendo Switch controllers - The Verge
Nintendo Switch Joy-Con Repair Resource - iFixit
How to connect a Joy-Con to an iPhone on iOS 16
Joy-Con, Nintendo Switch Support
How to turn on the Nintendo Switch with Joy-Cons or a Pro Controller
Nintendo Switch Lite Doesn't Use Joy-Cons, And Its Controller
How to use Nintendo Joy-Cons on PC
Switch Pro controller on PC: Bluetooth guide
Bonadget Joypad for Nintendo Switch Controller, for Switch Joy Con