I have created a list for cases that have at least one 3.1 gen 2 type C port utilising a 3.1 gen 2 header if you're still interested.
https://docs.google.com/spreadsheets/d/11onK00rTuw7XmH5D-XtsjT3P32qldAmoaOlLPCTAxk0/edit?usp=sharing
I think that 3.1 gen 2 type a ports on front panel will be...