I would say that you should consider imx432 or imx174 based mono cameras (ZWO or PlayerOne) if you'd be using a Quark. For Lunt full disk one could e.g. use imx178/183 or similar. And more detailed work maybe imx533 or those imx432 based sensors. Imx174 is fast but definitely more noisier than imx432.
For animations you should get something with high frame rate especially if you are "zooming in". I use my asi174mm and typically record animation material with my setup (Quark based system) around 160 fps. It makes all the difference compared to 30-60 fps.
What scope is the best? Depends on your budget but mostly your seeing. Here in Finland I am using 102 mm scope, maybe I could use also 130 mm but not bigger - the atmosphere will not allow it. But people are doing amazing stuff with 60 mm Lunt (
@rigel123 as an example here in AstroBin, using nowadays imx533 based sensor). And I wish that someday I could own a Lunt 60 mm DS for full disks, too.
So take a look on your daytime seeing data as that basically sets the "largest usable scope" limit. Then go with your budget for the scope (if it is "what ever it costs", then go with a model that takes most of your seeing but not bigger as then you will basically pay for nothing). When you know that, select suitable camera for your needs.
Oh, forgot to say that people do recommend full aperture front mounted etalons if you budget allows that. Plenty of information available for the reasons. So even if you use a pressure tuned Lunt, you most likely get better results with double stacking via front mounted DS etalon.