Dinosaur1, I'm in Reno (surprise, surprise) and I haven't had cable in the last 20 years. I can get all that you've mentioned with an antenna with the exception of Fox News (or any other cable news network). The Roku Channel has "Fox Live Now", but I don't think it's the same thing.
On your new Roku, check out The Roku Channel and the TCL Channel. Those are two I've used for "live" TV and there's probably similar Roku channels/apps that I haven't tried. For the most part it's not live in the traditional sense and neither is a substitute for local channels.
If you look for an antenna, don't get fooled by the "HDTV" tag on an antenna. There's no such thing as an HDTV antenna. What you need is a good VHF/UHF antenna (yes, some Reno channels are still on VHF; most are on UHF). You'll probably be surprised at what you can pick up with even the cheapest antenna. I tried a dollar store one once. I couldn't receive every channel, but it picked up a lot.
What you'd lose by going to an antenna is a DVR, so you can't record anything unless you want to invest in something like a Tivo. This is the one sticking point that is keeping me from getting my mother to cut the cord. Another option that uses just the Roku device is one of the streaming TV providers. They're becoming more and more like cable as have their prices, but some offer a "cloud" DVR if recording is important. Check out this article:
6 cable alternatives and live TV streaming services (2022)
As Strega2 said, check what your price would be if you drop TV from your service, especially if you have a land-line (telephone). For me, just Internet is something like $65/mo.
I've heard that there's "Renos" outside of Nevada, but I've never seen one. 😛
