Welcome to the CRVL Forums
Let me invite you to view the bottom link in my signature line as it was created for folks just like you. It's all free stuff too.
You already have a rig, so finding places to go with it will be the next step.
In that site there are links to sites like:
Journey Planner
Tripomatic
Fodor's Travel Guide
Free Campsites net (built in trip planner)
Flying Yak
and much more.
In the planning of a trip in these sites you may be asked how far from your course you would be willing to
go to see interesting sites. Then when you select a given number of miles, the software will show what interesting places you could visit within that range.
Some of us here travel a system called the 2-2-2. It means that they hit the road intending not to drive much more than two hours total. Then be settling into a camp site somewhere by 2pm (so if you start out around
8am you would have 6 total hours to travel and browse at places along the way.) The last 2 is staying in camp a couple of days. A lot of state and national parks have senior discounts that run Sunday evenings through Thursday evenings. This translates into seeing a lot more and de-stressing through your travels with
the additional benefits of not wearing out your rig prematurely and burning through your money all too quickly.
So often when we are working and the annual vacation comes get in the car and drive, drive, drive, to some distant destination. There is a lot of seeing of the countryside on the trip there and back. It's understandable for the short space of time the annual vacation takes place in in the working years. But so often people wonder what all they could have seen on the trips back and forth had they the time to do it. Now, in retirement or just leaving work to travel and live off grid there is no deadline to be back to work or anywhere else so there is no need to be in a race against the clock any longer.