You seem to be aiming a bit above what I am after. Almost any AM5 board would get you there with a couple of PICe cards though. Dont think I've ever seen a board with "onboard" 100GBe; the high end has mostly moved to OCP3.0. There is one single board computer that has an OCP3 slot which is actually a pretty nice idea for SBCs; perhaps we will get something similar to the R86S but with a more powerful cpu and some additional storage io soon.