A RV show is the worst place possible to make a decision. It is a decent place to look at what's available and see features you must have or would not have.
Decide on a budget, make decisions about features, pick you maximum gross weight (do your reading here on that, for sure) and then start shopping for a good used model that fits your needs. Don't worry overly much about the brand at this point.
Do your reading on here on what to look for and avoid in a used trailer, and then start shopping your area. There will be lots of trade-ins available, mostly from people who want a different size.
IME about 26' is a good size for a couple with pets.