If you are around nevada, caravan campers are awesome!
I have an ARE on order for my new Chevy Colorado with a short bed. I got side windows that open with vents and a roof rack installed. Leer and Century are also nice tops. There are some differences but any of the name brands will work. I focused on finding a local dealer that primarily sold and repaired tops/caps for a living. Some shops seemed more focused on lift kits and truck accessories and truck caps didn't seem to be a big part of what they do. When I know more than the sales guy, I get uncomfortable because I don't know much. The shop I bought mine from has been selling ARE for 28 years. That worked for me.