The US carrier T-Mobile now lists the new OnePlus 8T as its latest 5G phone. It costs the same as unlocked units in this country; however, a buyer may avail of an offer by which one is half this price when bought with a new line on the network. This requires a 2-year bill-pay contract, however.
https://www.notebookcheck.net/T-Mobile-launches-the-OnePlus-8T-with-an-introductory-50-discount-offer.498708.0.html