You're in selfhosted, so most people here are going to suggest you self host something like pfsense or opnsense, which would give you everything you need, but you know being self hosted you're going to have a steep learning curve.

Otherwise go pick up any router at best buy, they're all assorted levels of garbage.

I use OPNsense on a reasonably cheap mini-PC with 6 ethernet ports that I bought from AliExpress. You can do a lot with OPNsense. For wifi I could have added a wireless card, but to avoid any potential driver issues instead I just plug in a wireless router set to Access Point mode.

How much this kind of setup costs depends on what kind of hardware you buy. If you stick to the minimum spec for OPNsense and buy a cheap wifi card or a used wifi router from eBay, you won't need to spend too much.

I use an Asus 86RU running Asus-Merlin. It ticks all of your boxes.

MikroTik hAP ax3 seems to fit the requirements and is what I’m currently running. They add their enterprise features into the “consumer” packages, allowing you to set up VLANs, meshes, etc

I have a TP Link Archer C7 that has been working great for me.

How much wifi and open-source do you really want?

If you are willing to go with commercial hardware + open source firmware (OpenWRT) you might want to check the table of hardware of OpenWrt at https://openwrt.org/toh/views/toh_available_16128_ax-wifi and https://openwrt.org/toh/views/toh_available_864_ac-wifi. One solid pick for the future might be the Netgear WAX2* line. One of those models is now fully supported the others are on the way. If you don't mind having older wifi a Netgear R7800 is solid.

If you want full open-source hardware and software you need a more exotic brand like this https://www.banana-pi.org/en/bananapi-router/.

Both solutions will lead to OpenWRT when it comes to software, it is better than any commercial firmware but there's a catch about open-source wifi. The best performing wifi chips are Broadcom and those don't usually see open-source software support**. MediaTek is the open-source alternative and while they work fine they can't, unfortunately, beat Broadcom. As most hardware is Broadcom they have hacks that go behind the published wifi standards and get it go a few megabytes/second faster and/or improve the range a bit.

** DD-WRT is another "open-source" firmware that has a specific agreement with Broadcom to allow them to use their proprietary drivers and distribute them as blob with their firmware. While it works don't expect compatibility with newer hardware nor a bug free solution like OpenWRT is.

Check out Firewalla Gold. I think it would meet all of your requirements.

Could always whitebox it with Debian, nftables, dnsmasq, hostapd, etc. on an old mini PC if it has two NICs…

GL-Inet AX1800

OpenWRT, accessible via the advanced (LUCI) interface. You can define a bunch of SSID's including guest networks and/or bind them to VLAN's

I had a Netgear nighthawk r7800 with ddwrt, which finally crapped out. I went with the TP-link Deco Mesh router as a replacement, and so far it's working better than the ddwrt router. There are versions with Wi-Fi 6, but i went with the "3 stations for ~$120" and haven't had any problems with speed, since tht bottlenecks are usually external/cable modem related anyway.

My biggest selling point for the tp-link, it's much easier to set a local dns, with a fallback to 1.1.1.1, something i could never get to work on ddwrt. So whenever my Jellyfin transcodes bring the Pihole to a screeching halt, it will at least fallback to external dns and not take the whole network with it.

I can also have a base module Ethernet connected to my pc in the office, another hooked up to the cable modem and zimaboard in the livingroom, and eventually, a raspi with a couple of low resource containers (pihole, home assistant, nginx). My goal is to hardwire as many things as i can for speed/signal noise purposes.

All of the suggestions here are strong.

I don't know what electricity costs in your region, but I consider that as part of my decisions. You can soon spend more on power than the device costs.

A router will be on 24/7 with a fairly consistent load (sure there's peaks, more in the day, etc...)

Personally, I'd recommend you try a few different options - an old x86 PC is terrible for power, but great to try out pfSense / OPNSense / DD-Wrt / OpenWrt / Tomato first... then from that pick your real hardware.

Personally, I've tried a few things over the years and the *WRTs in a single re-imaged old wifi-router is probably everyone's Step 1.

If you want new, low power, etc - have a look at this for inspiration: https://www.youtube.com/watch?v=bM6Ivy_KLR4

I had very similar wishes, but settled on a Velica (GL-B2200). It comes with OpenWRT out of the box, and can be flashed to the newest version. It has great WiFi coverage, which is nicer than top speed imho. Downside is only 1 wan and 1 lan, but with a VLAN and a separate switch it might be ok for you.

You could go pfsense and add a wireless card.

I absolutely love my Synology router and access points. You can start with one and then if needed just add others for a mesh network. The RT6600ax has all of the features that you're looking for. My .02.

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

5 acronyms in this thread; the most compressed thread commented on today has 6 acronyms.

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