Best GPS for RV

I have always liked GARMIN and they are great for customer support!! I want to buy a new GPS that will route me in a such a way that I am not confronted with an overpass, bridge etc that is lower than my rig, I do not want it to tell me that I am nearing something that is dangerous, I want it to route me in the first place to roads without overpasses that are low. Also will tellw here there is diesel fuel at stations I can take my truck and fithwheel in and be able to get out without taking the fuel tank with me. I use Next Exit and that is good but it has taken me to gas stations with a diesel tank but not designed for trucks with trailers. YES I can stop at truck stops but in some parts of the country the truck stops are far and few between.