I’ve been following this guy on YouTube for a few years.
He has tons of videos and I think he would answer your questions if you contact him.
I have this one. It’s says indoor / outdoor, but obviously large for an indoor window. Maybe you could hide it behind some blinds.
Lastly, there’s an app for your phone called antenna point. It’ll show you where the broadcast are coming from, hopefully you have a window pointed in that direction.
lots of good info to help me cut my research time.
I am on the first floor so my trouble is twofold. I have to figure out a way to get the cable to the outside without a hole (maybe beside the dryer vent?, not sure) And then I would have the issue of getting it to an elevated point that I probably can't get access to and wouldn't be able to go past a neighbors balcony. I can certainly hide it behind blinds. It won't look bad inside and I don't care so much about outside (though the GF may)