What can be inserted into a laptop instead of an unnecessary DVD turntable, except for the well-known hard drive adapter?

Question

Adapters

I don’t need a second disk in my laptop, but additional USB-3.0 plugs would not hurt (there are only 2.0 on board).
I tried to look for such an adapter on Ali, but the local search is like playing a broken phone. Or maybe I just could not formulate an adequate search query. Tell me if anyone knows. And not only about USB, but in general, what can be put into a laptop on the free space and the mini-SATA port.