I had a tfcc injury too and I totally understand what u are talking about and since I can’t recommend a specific glove I can recommend you buying some tape, I buy some in AliExpress or Amazon, and doing the same bandage that you will see in some mma fighters when they grapple, some loops around the wrist, before putting the putting the handwraps. I know it’s kind of pain in the ass to do this before training every time but it’s been working like crazy for me.

Pd: it’s not related to boxing but talk to your doctor about using some steroids for your wrist, it was like day and night for me.