Hello Sam,
I have a small guitar list, but it includes a J200, so I'll put in a couple of cents worth.
First off, I will presume that your J200's body is probably a maple/spruce combination as that has been the standard production model since the 1940's. Working off that assumption, and also your statement that you like the sound of your 655ce, I would start with trying out a few 616 GS models. While not all guitars of the same model sound the same, the tonewoods should put the sound in the same ballpark. I also had some limited experience testing rosewood GS's over the last couple of years, and liked them very much (I was looking for rosewood), almost buying one (probably should have). While smaller than a J200, the GS felt very comfortable to play and sounded great. I also made the presumption that your 655ce is maple/spruce, and that the body size is very similar (just not as deep) as your J200. Like Tim mentioned, you should also try out the other models, Dreadnought/Grand Auditorium/Grand Orchestra. I would try the same maple tonewoods to get a 'sound' comparison on the body shape that best speaks to you. Then maybe branch out to other tonewoods with a better idea of what model you want.
Having recently done what you are about to do, I will give you a quick run-down of my search. May help you in yours. My J200 is rosewood/spruce and so I started with that as a guide to what I wanted, since I like the sound. And the body shape is very comfortable to me. I also have a 355 12 string so I knew I would be pleased with the right Taylor. I tried a few Taylor rosewood jumbos, but none really did it for me. And they were being discontinued. As I mentioned, I almost pulled the trigger on a rosewood GS, and kind of regretted not getting it. Finally settled on an 818e GO late last year, and am very happy with it, in both tone and body size. The body shape is kind of a cross between a DN and a GS, and is not as big as a Gibson jumbo, but nearly so. (I put a lot of measurements on another thread.) The biggest difference which you should take into account is that I don't strum that much, but mostly play fingerstyle using my nails as picks. And the rosewood suits me extremely well, no matter what stuff I am playing. Some contributors have mentioned that they didn't like strumming on the GO, so if you do check one out and like it, you have company. I like the fact that I get a great sound whether I play softer or louder than 'normal'.
Feel free to PM me if you want a deeper story.
Don