Best Two-way Radios

[pa_of_6]

OK Fellas

I am looking to purchase some 2-way radios for work in the bush.
Wondering which are good ones.
Ideally, I would like to be able to communicate with my 2 boys while we are herding cattle on horses.
The area is bush covered and the distance is 8-10 miles

Cell phones are two slow and annoying to use plus sometimes don't have service.

thanks in advance