8Bitdo controller - which one do I get? I don't understand the product lines.

Hi I am wanting to replace my older Xbox controller which is starting to have connection issues. I see the 8Bitdo controller recommended quite a bit as it's a good value. However, I don't quite understand why there are so many different product lines.

I want a wireless rechargeable controller to use on the steamdeck while it is docked. Which one do I get? Is there an exact model number?