Back when I was hosting servers in my home, I used an old Linux box (maybe a K6?) with several NICs. It didn't take much to keep up with DSL.

Since then, I've moved all my services to the cloud. My home router is a TP-Link Archer C7 v2, which I chose mainly because it was well-supported by OpenWRT.

The last few years, I've been using routers from GL.iNet [1] when setting things up for friends and family. The factory firmware is OpenWRT, lightly modded with a simplified UI in front. The full OpenWRT Luci UI is still available behind an "Advanced" link.

[1] https://www.gl-inet.com/

Not OP but check out IQrouter

https://evenroute.com/iqrv3