For internet on the road and at home, I bought an AT&T Homebase on ebay for $25, went to an AT&T store and activated my service. 25g of 4glte a month for $60. It's my service at home also in a rural area. It's broadband fast and I haven't come close to using 25g in a month. They will also give you a phone number and you can plug in a phone for phone service free. I think Verizon has a similar plan.
The funny thing is AT&T is backordered on the Homebases but they are available on ebay.
For cell service I use Straight Talk, 10g a month for $45. They use Verizon or AT&T towers depending on your zip code. I'm on AT&T towers.