Looking for a Recreation Vehicle

We have gone to an Outdoor Show and looked at a bunch of Travel Trailers,Fifth Wheels, Pop-ups and Cubes, no Class A, B or C's. Don't know why, but even our local dealer stopped selling anything other than TT's & 5's. Closest Camping World is 2-3 hrs away. We are in the process of selling our home, and want to go fulltime. Our current Class C is a bit old and could use a lot more space (storage and living)for 3 adults (elderly & disabled)and 2 dogs.
I already have a few specs I need, but I think finding the right class first would be best.