It's all about the stations tower placement. The digital signals are extremely sensitive unlike the old analog signals. If you live in an area where TV stations towers are in different directions, you might have some problems if the distance is more than 20-25 miles with a basic indoor antenna.
If you can stick an antenna outside and point it in the general area or the tower that is furthest away, you might get the best results.
I have an antenna like this that does a pretty good job inside.
https://www.antennasdirect.com/store/DB2e-Long-Range-Outdoor-Antenna.html
But my goal when I finally cut the cord is to mount it on the side of my house. I live outside of Omaha and if I point to Lincoln, I should be able to get both cities signals with no problem.