Right now using a pfSense router, it’s been working well but I’ll eventually replace it with hardware to run OPNsense (pfSense fork) when the time comes.

If you’re mainly just worried about wireless I’d just look into something to run OpenWrt or maybe FreshTomato if you’re sticking to older hardware. I have an older Linksys wireless router that is compatible with FreshTomato firmware so it’s been running on that and works well for my own usage, nothing fancy.