[landmass]

If open-source routers don't interest you, you might try reviewing this site: https://routersecurity.org/

The short answer is the line of routers from Peplink, including their low-end business router, the Pepwave Surf SOHO. The site's owner argues that big box routers put overmuch emphasis on speed at the cost to security; they build a fast router, he feels, but then neglect firmware security updates. I've owned the Surf SOHO since 2017 and have just upgraded to the Peplink Balance 20+ for a little more future-proofing. I can attest that their engineers are still updating the firmware.