I’m a big fan of my 8bitdo gamepads. They have 2.4ghz USB ones that work really well on Linux (steam deck or desktop).
I have the Ultimate 2C Wireless Controller
And I paid about 25€ for it. My other main gamepad is an old google stadia controller which also works really well.
Same for me, I found it on proshop, they ship to my country. I think the 2c has gotten an update, maybe you can find that one!