Since it’s so quiet here, let me start :)
The Steam Controller, albeit being discontinued in 2019 is still going strong here.
I like that you can easily replace the two AA batteries and even though the original wifi dongle broke somehow, it is possible to just link it with Bluetooth as well.
For me the secret ingredient was the goopy flux. That plus the copper wick and swish the wick around with the soldering iron and it all just reverse splooges away.