As previously noted, I think ALL 5ers will have windows on both sides; and generally the door is on the passenger side.
For a random "looking for stuff" website, I like General RV. I'm pretty sure it's www.generalrv.com It will let you sort their new and used inventory by size and floorplan (and price). Would give you an idea how different models lay out, although we discovered that in certain sizes, like our 28-footer, there's only a few variations.
IF you will have a pretty view on the driver's side of the trailer, you might like a rear living quarters with a couple of lounge chairs/rockers at the back of the trailer, to give you the view to the side?? In my trailer with a Super slide - couch and dinette on driver's side slide outward; you really couldn't see the view from the couch because your back would be towards the vista.
Ed, Deb, and 2 dogs
Looking for a small Class C!