The 8BitDo Micro is compact and has 16 buttons
8Bitdo Zero 2 Mini Bluetooth Gamepad for Switch Windows Android MacOS –
AKNES 8Bitdo Micro Bluetooth Controller, Pocket-Sized Mini Gamepad for Switch/Lite/OLED, Android, and Raspberry Pi, Supports Keyboard Mode for macOS/iPadOS/iOS/Wins - Blue : Video Games
8Bitdo Micro Bluetooth Gamepad Green
8Bitdo Micro Bluetooth Gamepad Green
8BitDo Micro Bluetooth Controller Pocket-sized Mini gamepad for Switch, Android, and Raspberry Pi, Support Keyboard Mode - AliExpress
8BitDo Lite2 for Switch/Raspberry Pi Micro Gamepad Bluetooth-compatible Pocket Mini Game Console Controller for Mac/OS/Android/P - AliExpress
Zero 2 is a key chain sized Bluetooth controller to take with you wherever you go. It weighs just 20 grams, boasts a rechargeable lithium-ion battery with 8 hours of playtime and is compatible with Switch, PC, macOS, and Android.Our controllers are designed to be as versatile as possible with each of your modern devices. Easily pair your controller as an X-input or D-input device via Bluetooth.
8Bitdo Zero 2 Mini Bluetooth Gamepad for Switch Windows Android macOS Steam Raspberry Pi (Pink)
8Bitdo Micro Bluetooth Gamepad Pocket-Sized Mini Controller for Switch, Android, and Raspberry Pi, Support Keyboard Mode (Blue)
8Bitdo Zero 2 Bluetooth Controller For Nintendo Switch/Raspberry PI /Steam/Win/macOS/Android Raspberry Pi Mini Gamepad - AliExpress
Super mini-sized wireless Bluetooth controller with16 buttons.Ultra-portable. Versatile. Powerful. Take it anywhere, play anytime Works seamlessly
Nargos 8BitDo Micro Bluetooth Key Chain Sized Mini Controller for Nitendo Switch, Windows, Android and macOS (Micro- Blue)