We struggled with the choice of solar. Permanent roof top or portable. There are pros and cons to both. What finally dawned on us was that most of our overnight spots have been in the shade so roof top would not be as effective. Also, roof top is almost never at an optimal angle to take full advantage of the panel(s). This led us to searching for portable solar panel stands and of course the internet was very obliging.
We ended up with a BougeRV 100W flexible panel, a Zamp sidewall port, 30A fuse and Renogy Adventurer 30A solar controller.
TBC