If you're getting a motherboard with multiple NICs, it's probably not limited to lowest cost NICs, so Intel is on the table. (Although, I'm still not sure if they got their 2.5g NICs to work?)
Dual NIC boards with AMD sockets does seem like a niche unfulfilled, though. There's some options on the Intel side though, something like ASRock Z690M-ITX/ax might work if you compromise on CPUs.