Delta essentials Bluetooth Wireless Mobile Game Controller for iOS/Android OS/PS3/PC Windows, Gamepad for Mobile Gaming Support Keymapping Black : Amazon.sg: Video Games
GitHub - Shyri/TouchMapper: TouchMapper is an Android App that lets you map gamepad input to touch events in the screen without needing to root the device. It is inteded to be used
How to play Android games like PUBG Mobile with a controller
Octopus - Gamepad, Keymapper v6.8.2 APK Pro Download
Game Controller KeyMapper is a free HID gamepad tester for Android