Help me choose a controller!

I know this question has been asked on the sub many times and I was just scrolling through them . But I'm still very confused about buying either cosmic byte stellaris or PowerA Dragon core. Both are of the same price at 3k and I don't have money to buy real controllers. Please if somebody owns either of them I would really appreciate if u could share ur experience. Also I heard Dragon core has callinration issues. Any fix to it?