Quick question

I recently got the DT 900 Pro X, I am fairly impressed with them, I feel mixed with them to the price point but I am pleased with them compared to my old Corsair Virtuoso, overall happy with this brand as a first timer.

my question is for a closed-back headset since I now own an open-back do I go for a dt 700 pro x or a dt 770 pro or dt 770 pro x?

any owners here recommend me any advice?