Anybody know where I can get the location of 5G cell tower. I would get wildly different speeds in my house. Some <60mbps some >300mbps. If I know the exact location I can try to place my device so that it have line of sight to the tower.

I think you need to check for yourself. In my experience it depends heavily on your location e.g. indoors, outdoor, any high rise buildings between you & the 5G tower.

At my house, moving from 1 room to another make the speed change wildly & sometime loose the 5g connection.

You can get the prepaid plan & test drive first.