Want to plan a trip..

Why not use a site designed to find you alternate or area routes...
https://www.myscenicdrives.com/

This is the site Pancake plans our road trips on...For six months he works on it, adjusts it, fine tunes it, adds new side trips to it, polishes it, and after day one of the trip...Totally changes the route. 
But the site follows him on his phone, and he just keeps making changes, and more changes, and more changes.

There are so many variations made that the original plan is hardly noticeable in the final scheme of things.