I’m using a Thrustmaster Eswap X Pro. The joystick and dpad modules are hot swappable and can be put in any orientation you prefer. They sell replacement joystick modules for $20, which is nice because you don’t have to replace the whole controller if one gets stick drift.
I would try out the original before playing 2. DD2 is very similar to the original but DD2 is better in my opinion. If you enjoy the first, you will almost certainly enjoy the second. DD2 may go on sale for Steam’s upcoming Fall sale, something to think about.