QNAP switch with 2x 10GBASE-T and 4x 2.5GBASE-T RJ45 ports $105

Fanless unmanaged six-port all-copper RJ45 switch with a couple of 10GBASE-T ports and four 2.5GBASE-T ports, which will negotiate down to 2.5gbps and 1gbps. If you don’t already have fiber and transceivers, this is considerably less expensive overall than a SFP+ switch.
https://www.amazon.com/gp/product/B0BFCBSSD1
Possibly less expensive ($99) direct from QNAP, depending on shipping:
https://store.qnap.com/qsw-2104-2t-a-us.html