[ForHackernews]

Literally any major router brand?

[lxgr]

That would require the capability to reliably and automatically push firmware updates out to existing devices, not something that I'd traditionally associate with home router manufacturers.

Also, at least in my experience, most private households just use the (usually horrible) ISP supplied CPE.

[detaro]

Which typically are by one of the major router brands, and do typically have mechanisms for ISP-controlled updates.