The Essential Phone PH-1 is now certified for the MVNO Google FI (formerly known as Project FI), although full network switching is not guaranteed. What is, is access to at a minimum T-mobile's network, and add'l international options and perks by Google.
It personally doesn't work for me as far as pricing goes, but if you are a light data user, it may be worth checking into.
It personally doesn't work for me as far as pricing goes, but if you are a light data user, it may be worth checking into.