The Brother HL-L2460DW is the best default pick for most people who want a simple black-and-white laser printer with local connectivity options.
It supports USB, Ethernet, dual-band Wi-Fi, automatic duplex printing, and up to 36 ppm output. For privacy-focused setups, prefer USB or Ethernet, avoid Brother Refresh and toner subscriptions, avoid the mobile app unless needed, disable wireless features you do not use, change the admin password, keep firmware updated, and block outbound internet from the printer if your router supports it.
This is not a private-by-default device. It is a good low-telemetry choice when configured locally and kept out of unnecessary cloud or vendor workflows.