Tiny mini PC with four 2.5Gbps Ethernet ports ships with Intel Processor N100/N200 or Core i3-N305 CPU - CNX Software
www.cnx-software.com
The "M1 Pocket Mini Soft Router" is a tiny Intel Alder Lake-N OEM mini PC with four 2.5Gbps Ethernet ports that is powered by a Processor N100, Processor

A bit expensive, but something like this could be a worthy upgrade on the good old PC-Engine APU4 boards many self-hosters use.