NVIDIA GeForce RTX desktop graphics cards of any nature are difficult to source currently. However, ZOTAC is now running a sale on the MAGNUS EN72070S and MAGNUS EN72070V, which have the RTX 2070 and RTX 2070 SUPER, respectively. The mini-PCs have an Intel Core i7-9750H too.
https://www.notebookcheck.net/ZOTAC-MAGNUS-EN72070S-with-an-Intel-Core-i7-9750H-and-NVIDIA-GeForce-RTX-2070-SUPER-drops-to-US-1-119-99-in-Winter-Clearance.521672.0.html