One of the smallest eGPU docks available is getting upgraded to a mini GeForce RTX 2070 graphics card. The new Gaming Box promises real-time ray tracking and AI for any Ultrabook with a Thunderbolt 3 port. Support for MacBooks, however, remains out of reach for now.
https://www.notebookcheck.net/Aorus-Gaming-Box-gets-refreshed-with-GeForce-GTX-2070-graphics.397556.0.html