Official Sony PlayStation 3 PS3 Controller OEM Original Authentic TESTED | eBay
Thrustmaster Dual Trigger 3 in 1 Gamepad Controller PS3 PS2 PC – GameDealDaily
Retro Fighters Defender – Retro PlayStation Controller – PS1 PS2 PS3 – Blue – ASA College: Florida
PS2 Controller to PS3/PC Cable Converter
For SONY PS2 Wireless Controller Gamepad for Play Station 2 Joystick Console for PS2 for sony PS1 Transparent Color _ - AliExpress Mobile
The best controller for steam deck is one you already have. My PS One Analog is still working, tho through cable with more than a decade old PS2 to PS3 USB converter.