The Rockchip 3588-based Orange Pi 5, 5b and 5+ are readily available. The MSRP is a little higher than RPi4 but they have significantly more CPU/GPU power and I/O. The new 5+ looks to be a viable desktop replacement with m.2 NVME, dual 2.5 Gbps Ethernet, dual HDMI 2.1 and USB 3.1.
It's running a weird unsupported kernel, though iirc mainline 6.3 mostly works now (just don't expect hardware video encode or decode to work anytime soon, if ever on a rockchip soc running Linux)
I have been running Armbian on a 5 as home server for some time with a ton of services. It has performed impressively well with 2TB NVME and additional 8TB of drives I have connected. It is a relatively powerful home server with low cost, power, and price.