The solar panel market is quite competitive right now.
I would pay attention more to the charge controller than the panels.
Plan ahead; how many panels do you want? now? and in the future?
How many house batteries do you have? Now? and in the future?
AGM or Lithium?
How do you want to use your RV dictates how you plan your solar/energy needs.
ie how much power do you need?
For TV+Microwave+Coffee maker+computers+cell phones+lights+... ???
For how many people? The more people you have, the more power you need.
Where do you camp? at serviced campsite with plug in?
For 4~5 day unplugged long weekends?
For 3+ week boondocking?
For year long retirement wandering?
You have just opened a whole new world.