Hi, @Jeff&Kathy! Welcome to RV Forum. Some great, knowledgeable, & friendly folks here; & they will be glad to help you!
Our first venture into a Class "A" started with a fantastic. super maintained, 2004 Newmar Mountain Aire. A 38' gas coach with beautiful appointments, & was the just the right vehicle for us to learn about the RV World. After 7 months, we knew we wanted a new coach.
There was a lot of research about models, floor plans, gas vs. diesel, interior appointments, price, etc. Canyon Star, Ventana, Dutch Star; all fantastic coaches!
The final decision for us was to order a 2020 Newmar Canyon Star "3710" gas coach. It also is a 38' coach, and the ideal size & floor plan for us. The decision was based on usage, time on the road each year; weighed against the significant & substantial added cost of a diesel, & in my mind I couldn't justify the expense for a coach we will probably keep about 5-8 years.
Like "BGMAC", it's just the two of us, so we opted for theater seating, a fireplace (which we love), a Euro Dinette, which has proven to be a favorite spot for Marilyn, she stretches out, as if it were a "chaise"!? And a comfortable king size bed, with a bath & 1/2. Another feature we would not be without, after having it!
So, floor plans are extremely important, & get one you will be happy with, as together, you will spend significant time in it during your travels!
Most of all, enjoy the process, make the decisions that are best for you, then enjoy the wonderful "RV World", and all the great people you will meet in your travels!
Good Luck! Have Fun!