Chosen Solution
I’m looking for an external case or convertor (USB or similar) to mount the internal SSD to then recover files. Solid state drive for Late 2016 and Mid 2017 MacBook Pro without Touch BarProprietary Apple PCIe 3.0 x4 interface with a 22+34 pin connector
Sorry to tell you so far no one offers such a case. I would recommend you give OWC - Support to see if they have plans to make one. The only way is using another system for now.