Welcome to the forum.
Terier hit it on the head. In addition to renting one or more RV's to see what you like, take some time to visit dealer lots and RV shows and be sure you are in and out of all types of units so that you get a sense of what might suit you. The DW and I had so many "dates" that TT shopping became our "hobby" for awhile.
Also, make an effort to educate yourself by reading as much as you can on this forum and others.
We spent nearly two years "shopping" and many months "lurking" on RV forums (me, not the DW, as she is slightly bored by the nitty gritty details) before we made a final choice and purchased our new TT. By the time we did so, we had a good idea what we wanted and had a pretty good sense of how to use it.
We love our TT, and believe that process was a big part of our present satsifaction. Like most chapters in life, the journey can be as important as the destination. Happy travels!
2013 Windjammer 3008W
2006 Chevy Silverado 2500HD 6.0L w/Equalizer 4
Nights camped: 2012 (29); 2013 (26); 2014 (40); 2015 (43); 2016 (35)