Any recommendations for cellphone service?

[RV Squirrel]

My wife and I live in Maryland.  Our cellphone coverage is terrible in our neighborhood, and we are looking to take advantage of "Black Friday" plans to update our phones and network.  We currently have Verizon, which is not working for us... we often have better cell service at a remote campground then we do at home!  We are considering T-Mobile and AT&T, but are wondering what the coverage would be at campsites.  Any recommendations for cellphone service?  We would be getting new phones, so a 5G network is an option if it came at a reasonable cost. 

[charliem]

Before you jump to T-Mobile check with a close neighbor who is on AT&T. T-Mobile uses some combination of Verizon and AT&T towers so their coverage can be no better than those towers.

[RV Squirrel]

Will do.  I was about to knock on some doors today when my wife stopped me.  "Normal people are eating turkey and watching football" she says. 

I found an interesting interactive coverage map maintained by the FCC.  I'm not sure how much to trust it though... I used it to search some of our favorite campgrounds, and got different results when going from one end of the campground loop to the other!