Last week I broke my bedroom TV, which was not hooked up to anything except an antenna, an Amazon Fire Stick and a dusty Blu-Ray player. I replaced it with a TCL (brand) Roku TV, which “found” a ton of free digital/streaming channels for me, in addition to the channels the antenna picked up. I had no idea I would get all of those additional channels, but was thrilled to find OANN and NewsMax among them. Assuming you have a smart TV, I wonder if you could get OANN simply by adding a Roku stick to your TV. Might be worth looking into; I think the Roku sticks cost around $40.
I have a few full on ROKU smart TVs. I hate using streaming services though.