I use this controller...I love it...

Rotor Riot MFI Certified Gamepad Controller for iPhone - Wired with L3 + R3 Compatibility, Power Pass Through Charging, Improved 8 Way D-Pad, and redesigned ZeroG Mobile Device (Renewed) https://www.amazon.com/dp/B07WSJ44GM/ref=cm_sw_r_cp_api_i_.gStFbSXVZ2FT